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- .rs
- .\" Troff code generated by TPS Convert from ITU Original Files
- .\" Not Copyright (~c) 1991
- .\"
- .\" Assumes tbl, eqn, MS macros, and lots of luck.
- .TA 1c 2c 3c 4c 5c 6c 7c 8c
- .ds CH
- .ds CF
- .EQ
- delim @@
- .EN
- .nr LL 40.5P
- .nr ll 40.5P
- .nr HM 3P
- .nr FM 6P
- .nr PO 4P
- .nr PD 9p
- .po 4P
-
- .rs
- \v'|.5i'
- .LP
- \fBMONTAGE:\ \fR DEBUT DU X.225 EN TETE DE CETTE PAGE
- .sp 2P
- .LP
- \v'40P'
- \fB8\fR \fBStructure and encoding of SPDUs\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.1
- \fITSDU structure\fR
- .EF '% Fascicle\ VIII.5\ \(em\ Rec.\ X.225''
- .OF '''Fascicle\ VIII.5\ \(em\ Rec.\ X.225 %'
- .sp 9p
- .RT
- .PP
- Each TSDU consists of one or more SPDUs complying with the
- requirements for concatenation (see \(sc\ 6.3.7).
- .PP
- Each SPDU within a TSDU consists of one or more octets that are
- numbered sequentially starting from 1.
- .PP
- Each octet within an SPDU consists of eight bits numbered\ 8 to\ 1
- where\ 1 is the low ordered bit.
- .PP
- The sequence of octets within an SPDU and the sequence of bits within an
- octet are defined for each SPDU in \(sc\ 8.3, with the additional convention
- that where the text refers to bits within a two\(hyoctet field and the bits are
- numbered\ 16 to\ 1, then\ 1 is the low order bit and the octet containing
- bits\ 16 to\ 9 precedes the octet containing bits\ 8 to\ 1 in the SPDU.
- .bp
- .PP
- Within each TSDU:
- .RT
- .LP
- a)
- the sequential ordering of SPDUs is maintained;
- .LP
- b)
- the ordering of the octets is maintained in the same order
- as in the SPDU;
- .LP
- c)
- the ordering of bits within each TSDU is maintained in the
- same order as in the SPDU (i.e.\ the low order bit is mapped onto
- the low order bit and the high order bit is mapped onto the high
- order bit).
- .PP
- \fINote\ 1\fR \ \(em\ The TSDU structure is illustrated in Figure\ 4/X.225.
- The integrity of this structure is maintained over a transport connection.
- This Recommendation does not define the way in which the TSDU is transmitted.
- .PP
- \fINote\ 2\fR \ \(em\ When the structure of an SPDU is illustrated in this
- Recommendation, the following convention is used:
- .RT
- .LP
- a)
- octets are shown with the lowest numbered octet to the left,
- higher numbered octets being shown further to the right;
- .LP
- b)
- within an octet, bits are shown with bit\ 8 to the left and
- bit\ 1 to the right.
- .LP
- .rs
- .sp 14P
- .ad r
- \fBFigure 4/X.225, p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .sp 1P
- .LP
- 8.2
- \fISPDU structure\fR
- .sp 9p
- .RT
- .PP
- This subsection specifies the general structure of SPDUs in terms of their
- constituent fields. This structure is illustrated in Figure\ 5/X.225.
- .PP
- Codings and structural requirements specific to particular SPDUs are specified
- in \(sc\ 8.3.
- .PP
- Examples of valid SPDU structure are illustrated in
- Figure\ 6/X.225.
- .RT
- .sp 1P
- .LP
- 8.2.1
- \fISPDUs\fR
- .sp 9p
- .RT
- .PP
- SPDUs shall contain, in the following order:
- .RT
- .LP
- a)
- \fIthe SI field\fR that identifies the type of SPDU (see Note);
- .LP
- b)
- \fIthe LI field\fR that indicates the length of the associated
- parameter field defined in \(sc\ 8.2.1\|c);
- .LP
- c)
- \fIthe parameter field\fR which, if present, consists of the
- PGI units (see \(sc\ 8.2.2) and/or PI units (see \(sc\ 8.2.3) defined
- for the SPDU;
- .LP
- d)
- \fIthe user information field\fR , if defined for the SPDU and if
- present.
- .PP
- \fINote\fR \ \(em\ The SI field encompasses both the CI field and the RI
- field defined in Recommendation\ T.62. The protocol specified in this
- Recommendation does not require a distinction to be made between these two
- fields.
- .sp 1P
- .LP
- 8.2.2
- \fIPGI units\fR
- .sp 9p
- .RT
- .PP
- PGI units shall contain, in the following order:
- .RT
- .LP
- a)
- \fIthe PGI field\fR that identifies the parameter group;
- .LP
- b)
- \fIthe LI field\fR that indicates the length of the associated
- parameter field defined in \(sc\ 8.2.2\ c);
- .bp
- .LP
- c)
- \fIthe parameter field\fR which, if present, consists of
- either:
- .LP
- 1)
- a single parameter value (see Note); or
- .LP
- 2)
- one or more PI units (see \(sc\ 8.2.3).
- .PP
- \fINote\fR \ \(em\ A PGI unit with one parameter is structurally equivalent
- to a PI unit, but the distinction has been retained in order to maintain
- compatibility with Recommendation\ T.62.
- .LP
- .rs
- .sp 12P
- .ad r
- \fBFigure 5/X.225, p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .rs
- .sp 31P
- .ad r
- \fBFigure 6/X.225, p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .sp 1P
- .LP
- 8.2.3
- \fIPI units\fR
- .sp 9p
- .RT
- .PP
- PI units shall contain, in the following order:
- .RT
- .LP
- a)
- the \fIPI field\fR that identifies the parameter;
- .LP
- b)
- the \fILI field\fR that indicates the length of the associated
- parameter field defined in \(sc\ 8.2.3\ c);
- .LP
- c)
- the \fIparameter field\fR which, if present, consists of the
- parameter value.
- .sp 1P
- .LP
- 8.2.4
- \fIIdentifier fields\fR
- .sp 9p
- .RT
- .PP
- The SI field shall comprise one octet. The value of the SI field, specified
- as a decimal number in \(sc\ 8.3, shall be encoded as a binary number.
- .PP
- The PGI and PI fields shall each comprise one octet and shall contain a
- PGI or PI code respectively. The PGI and PI codes are expressed as decimal
- numbers in the tables in \(sc\ 8.3 and shall be encoded as a binary number.
- .RT
- .sp 1P
- .LP
- 8.2.5
- \fILength indicator field\fR
- .sp 9p
- .RT
- .PP
- The value of the LI field is expressed as a binary number
- representing the length, in octets, of the associated parameter field (see
- Note). A value of zero indicates that the associated parameter field is
- absent.
- .PP
- LI fields indicating lengths within the range 0\(hy254 shall comprise one
- octet.
- .PP
- LI fields indicating lengths within the range 255\(hy65\|535 shall
- comprise
- three octets. The first octet shall be coded\ 1111\ 1111 and the second
- and third octets shall contain the length of the associated parameter field
- with the high order bits in the first of these two octets.
- .PP
- \fINote\fR \ \(em\ The value of the LI field does not include either itself
- or any subsequent user information.
- .RT
- .sp 1P
- .LP
- 8.2.6
- \fIParameter fields\fR
- .sp 9p
- .RT
- .PP
- PGI units and PI units defined as mandatory in the tables in \(sc\ 8.3
- shall contain a parameter field of one or more octets.
- .PP
- Any PGI unit or PI unit defined as non\(hymandatory in the tables in
- \(sc\ 8.3 may be omitted if it is not required for conveying information
- (i.e. a
- parameter value). If a PGI unit or a PI unit contains an LI field with the
- value zero, the associated parameter field is absent (see Note) and the
- value of the parameter field shall be considered as its default value.
- .PP
- \fINote\fR \ \(em\ It is recommended that if a non\(hymandatory parameter is
- absent, the associated PGI (or PI) and LI fields should not be included
- in the SPDU.
- .PP
- PGI units and PI units within the same nesting level shall be ordered in
- increasing value of their PGI and PI codes.
- .PP
- PGI or PI units containing:
- .RT
- .LP
- a)
- a PGI or PI code listed in Annex\ C,
- .LP
- b)
- a PGI or PI code not listed in \(sc 8.3 or in Annex C,
- .LP
- are defined as valid.
- .PP
- \fINote\fR \ \(em\ See \(sc A.4.3 for actions to be taken by the SPM
- on receipt of SPDUs containing these PGI or PI units.
- .sp 1P
- .LP
- 8.2.7
- \fIParameter values\fR
- .sp 9p
- .RT
- .PP
- Bits within a parameter field which are indicated as reserved shall have
- those bits set to zero in the SPDU.
- .PP
- \fINote\fR \ \(em\ See \(sc A.4.3 for actions to be taken by the SPM
- on receipt of SPDUs containing such bits.
- .RT
- .sp 1P
- .LP
- 8.2.8
- \fIUser information fields\fR
- .sp 9p
- .RT
- .PP
- Segments of a segmented SSDU shall be contained in the User
- Information Fields of SPDUs such that the order of the segments is maintained.
- An SSDU which is not segmented shall be contained in the User Information
- Field of a single SPDU. The order of the octets and the order of the bits in
- the SSDU shall be maintained in the SPDUs.
- .bp
- .RT
- .sp 1P
- .LP
- 8.3
- \fISPDU identifiers and associated parameter fields\fR
- .sp 9p
- .RT
- .PP
- The SPDUs specified in the remainder of this subsection do not,
- with certain exceptions, consider the case where an SSDU is segmented. When
- protocol version\ 2 is selected, most SSDUs may be segmented. (The circumstances
- under which an SSDU may be segmented are specified in \(sc\ 6.3.5.) The
- additional encoding requirements when an SSDU is segmented are specified
- in \(sc\ 8.4.
- .RT
- .sp 2P
- .LP
- 8.3.1
- \fICONNECT (CN) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.1.1
- The SI field shall contain the value 13.
- .sp 9p
- .RT
- .PP
- 8.3.1.2
- The parameter fields shall be as specified in Table\ 11/X.225.
- .PP
- 8.3.1.3
- The Calling SS\(hyuser Reference PV field shall be as defined by
- the calling SS\(hyuser.
- .PP
- 8.3.1.4
- The Common Reference PV field shall be as defined by the calling SS\(hyuser.
- .PP
- 8.3.1.5
- The Additional Reference Information PV field shall be as defined by the
- calling SS\(hyuser.
- .PP
- 8.3.1.6
- If the Connect/Accept Item is absent, the default values defined for the
- enclosed PI units shall apply.
- .PP
- 8.3.1.7
- The Protocol Options PV field shall indicate whether or not the
- initiator is able to receive extended concatenated SPDUs (see \(sc\ 6.3.7). The
- encoding for this field shall be:
- .LP
- a)
- bit\ 1\ =\ 1\ :\ able to receive extended concatenated SPDUs;
- .LP
- b)
- bit\ 1\ =\ 0\ :\ not able to receive extended concatenated
- SPDUs.
- .LP
- Bits 2\(hy8 are reserved.
- .PP
- If the Protocol Options PI unit or PV field is absent, SPDUs with extended
- concatenation cannot be received.
- .PP
- 8.3.1.8
- The TSDU Maximum Size PV shall be present if a TSDU
- Minimum Size PV is proposed:
- .LP
- a)
- the first two octets of the PV field shall contain the
- proposed maximum TSDU size, expressed in octets, in the
- direction from the initiator to the responder, encoded as a
- binary number, where the first of the two octets is the high
- order part of the number;
- .LP
- b)
- the second two octets of the PV field shall contain the
- proposed maximum TSDU size, expressed in octets, in the
- direction from the responder to the initiator, encoded as a
- binary number, where the first of the two octets is the high
- order part of the number.
- .PP
- If this parameter is not present, the TSDU Maximum Size is not
- limited over the session connection. If either pair of octets has the value
- zero, the TSDU size is not limited in the direction of transfer associated
- with that pair of octets.
- .PP
- 8.3.1.9
- The bits in the Version Number PV field shall indicate which
- protocol versions are proposed for use over the session connection:
- .LP
- a)
- bit 1 protocol version 1;
- .LP
- b)
- bit 1 protocol version 2.
- .LP
- Bits 3\(hy8 are reserved.
- .PP
- The encoding for each bit shall be:
- .LP
- c)
- 0\ :\ use of the protocol version not proposed;
- .LP
- d)
- 1\ :\ use of the protocol version proposed.
- .PP
- If this PI unit or PV field is absent, the default shall be
- protocol version 1.
- .LP
- 8.3.1.10\ \ The Initial Serial Number PV field shall be present if the
- activity management functional unit is not proposed and any of the minor
- synchronize, major synchronize or resynchronize functional units are proposed.
- As an SS\(hyuser option, an Initial Serial Number PV field may be present
- if the activity management functional unit is proposed provided that any of
- the minor synchronize, major synchronize or resynchronize functional units
- are also proposed.
- .bp
- .ce
- \fBH.T. [T11.225]\fR
- .ce
- TABLE\ 11/X.225
- .ce
- \fBParameters of the CONNECT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- Connection identifier nm 1 Calling SS\(hyuser reference nm 10 64\ octets maximum T{
- \(sc\ 7.1.1\|a)\|1)
- \(sc\ 8.3.1.3
- T}
- Common reference nm 11 64\ octets maximum T{
- \(sc\ 7.1.1\|a)\|2)
- \(sc\ 8.3.1.4
- T} T{
- Additional reference information
- T} nm 12 4\ octets maximum T{
- \(sc\ 7.1.1\|a)\|3)
- \(sc\ 8.3.1.5
- T}
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- T{
- Connect/Accept
- item (see \(sc\ 8.3.1.6)
- T} nm 5 Protocol options m 19 1\ octet T{
- \(sc\ 7.1.1\|b)\|1)
- \(sc\ 8.3.1.7
- T}
- TSDU maximum size nm 21 4 octets T{
- \(sc\ 7.1.1\|b)\|2)
- \(sc\ 8.3.1.8
- T} Version number m 22 1 octet T{
- \(sc\ 7.1.1\|b)\|3)
- \(sc\ 8.3.1.9
- T} Initial serial number nm 23 6\ octets maximum T{
- \(sc\ 7.1.1\|b)\|4)
- \(sc\ 8.3.1.10
- T} Token setting item nm 26 1 octet T{
- \(sc\ 7.1.1\|b)\|5)
- \(sc\ 8.3.1.11
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Session user requirements nm 20 2\ octets T{
- \(sc\ 7.1.1\|c)
- \(sc\ 8.3.1.12
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Calling session selector nm 51 16\ octets maximum T{
- \(sc\ 7.1.1\|d)
- \(sc\ 8.3.1.13
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Called session selector nm 52 16\ octets maximum T{
- \(sc\ 7.1.1\|d)
- \(sc\ 8.3.1.14
- T}
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 512\ octets maximum T{
- \(sc\ 7.1.1\|e)
- \(sc\ 8.3.1.15
- T}
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Data overflow nm 60 1\ octet T{
- \(sc\ 7.1.1\|f
- )
- \(sc\ 8.3.1.17
- T}
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Extended user data nm 194 10\|240\ octets maximum T{
- \(sc\ 7.1.1\|g)
- \(sc\ 8.3.1.16
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtableau 11/X.225 [T11.225], p. 4\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 6
- .bp
- .PP
- Each digit of the serial number is encoded as an octet, as
- follows:
- .LP
- a)
- 0\ :\ 0011\ 0000;
- .LP
- b)
- 1\ :\ 0011\ 0001;
- .LP
- c)
- 2\ :\ 0011\ 0010;
- .LP
- d)
- 3\ :\ 0011\ 0011;
- .LP
- e)
- 4\ :\ 0011\ 0100;
- .LP
- f
- )
- 5\ :\ 0011\ 0101;
- .LP
- g)
- 6\ :\ 0011\ 0110;
- .LP
- h)
- 7\ :\ 0011\ 0111;
- .LP
- i)
- 8\ :\ 0011\ 1000;
- .LP
- j)
- 9\ :\ 0011\ 1001.
- .PP
- Serial number can range from 0 to 999\|999. The most significant
- digit is encoded first in the PV field. Leading zeros may be omitted.
- .LP
- 8.3.1.11\ \ The Token Setting Item PV field, if present, shall indicate the
- initial position of the tokens. The bits of the Token Setting Item PV field
- are defined as bit pairs:
- .LP
- a)
- bits\ 8,\ 7\ release token;
- .LP
- b)
- bits\ 6,\ 5\ major/activity token;
- .LP
- c)
- bits\ 4,\ 3\ synchronize\(hyminor token;
- .LP
- d)
- bits\ 2,\ 1\ data token.
- .PP
- The encoding for each bit pair shall be:
- .LP
- e)
- 00\ :\ initiator's side;
- .LP
- f
- )
- 01\ :\ responder's side;
- .LP
- g)
- 10\ :\ called SS user's choice;
- .LP
- h)
- 11\ :\ reserved.
- .PP
- The values are relevant only if the appropriate functional units are requested
- in the Session User Requirements parameter. If no functional unit requiring
- a token has been requested, this parameter need not be present.
- .PP
- If this PI unit or PV field is absent, the default shall be that all tokens
- whose availability is proposed in the Session User Requirements
- parameter are assigned to the calling\ SS\(hyuser.
- .RT
- .LP
- 8.3.1.12\ \ The bits in the Session User Requirements PV field shall
- indicate the functional units proposed by the calling SS\(hyuser, for use over
- this session connection:
- .LP
- a)
- bit\ \ 1\ half\(hyduplex functional unit;
- .LP
- b)
- bit\ \ 2\ duplex functional unit;
- .LP
- c)
- bit\ \ 3\ expedited data functional unit;
- .LP
- d)
- bit\ \ 4\ minor synchronize functional unit;
- .LP
- e)
- bit\ \ 5\ major synchronize functional unit;
- .LP
- f
- )
- bit\ \ 6\ resynchronize functional unit;
- .LP
- g)
- bit\ \ 7\ activity management functional unit;
- .LP
- h)
- bit\ \ 8\ negotiated release functional unit;
- .LP
- i)
- bit\ \ 9\ capability data functional unit;
- .LP
- j
- )
- bit\ 10\ exceptions functional unit;
- .LP
- k)
- bit\ 11\ typed data functional unit.
- .LP
- Bits 12\(hy16 are reserved.
- .PP
- When this parameter is present, at least one of the half\(hyduplex
- and the duplex functional units shall be proposed.
- .PP
- The encoding for each bit shall be:
- .RT
- .LP
- l)
- 0\ :\ use of functional unit not proposed;
- .LP
- m)
- 1\ :\ use of functional unit proposed.
- .PP
- When this parameter is absent, the default shall be as though
- bits\ 1, 4, 7, 9 and\ 10 are set to one and the remaining bits are set to zero.
- .bp
- .LP
- 8.3.1.13\ \ The Calling Session Selector, if present, shall be derived from
- the Calling Session Address supplied by the calling SS\(hyuser. When this
- parameter is absent, the default shall be as though this parameter was
- set to a null value.
- .LP
- 8.3.1.14\ \ The Called Session Selector, if present, shall be derived from
- the Called Session Address supplied by the calling SS\(hyuser. When this
- parameter is absent, the default shall be as though this parameter was
- set to a null value.
- .LP
- 8.3.1.15\ \ The User Data PV field, if present, shall contain user data
- supplied by the calling SS\(hyuser.
- .LP
- 8.3.1.16\ \ The Extended User Data parameter, if present, shall contain
- user data supplied by the calling SS\(hyuser. This parameter shall be present
- if the Data
- Overflow parameter is present. This parameter shall not be present if protocol
- version\ 1 is proposed.
- .PP
- Only one of the User Data and Extended User Data parameters may be present
- (see \(sc\ 7.1.1).
- .LP
- 8.3.1.17\ \ The Data Overflow parameter, if present, shall indicate that
- there is more than 10\|240\ octets of user data to be transformed. This
- parameter shall
- not be present if protocol version\ 1 is proposed.
- .PP
- The encoding of this field shall be:
- .LP
- bit 1\ =\ 1 more than 10\|240 octets of user data;
- .LP
- bit 1 shall never be set equal to 0.
- .PP
- Bits 2\(hy8 are reserved.
- .PP
- If the Data Overflow PI unit or PV field is absent, there are not more
- than 10\|240 octets of user data.
- .RT
- .sp 2P
- .LP
- 8.3.2
- \fIOVERFLOW ACCEPT (OA) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.2.1
- The SI field shall contain the value 16.
- .sp 9p
- .RT
- .PP
- 8.3.2.2
- The parameter fields shall be as specified in Table\ 12/X.225.
- .ce
- \fBH.T. [T12.225]\fR
- .ce
- TABLE\ 12/X.225
- .ce
- \fBParameters of the OVERFLOW ACCEPT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- TSDU maximum size nm 21 4 octets \(sc\ 7.2.1\|a) \(sc\ 8.3.2.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Version number m 22 1 octet T{
- \(sc\ 7.2.1\|b)
- \(sc\ 8.3.2.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 12/X.225 [T12.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- 8.3.2.3
- The TSDU Maximum Size parameter shall be present if a TSDU maximum size
- is proposed by the receiver. The encoding and default for this field is
- defined in \(sc\ 8.3.1.8.
- .PP
- 8.3.2.4
- In the Version Number PV field bit 2 shall have the value 1
- indicating that protocol version\ 2 is proposed (and selected) for use
- over this session connection. Bit\ 1 shall have the value\ 0 indicating
- that protocol
- version\ 1 is not proposed.
- .PP
- Bits 3\(hy8 are reserved.
- .bp
- .sp 2P
- .LP
- 8.3.3
- \fICONNECT DATA OVERFLOW (CDO) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.3.1
- The SI field shall contain the value 15.
- .sp 9p
- .RT
- .PP
- 8.3.3.2
- The parameter fields shall be as specified in Table\ 13/X.225.
- .ce
- \fBH.T. [T13.225]\fR
- .ce
- TABLE\ 13/X.225
- .ce
- \fBParameters of the CONNECT DATA OVERFLOW\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item m 25 1 octet \(sc\ 7.3.1\|a) \(sc\ 8.3.3.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 65\|528\ octets maximum T{
- \(sc\ 7.3.1\|b)
- \(sc\ 8.3.3.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 13/X.225 [T13.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- 8.3.3.3
- The Enclosure Item PV field shall indicate whether or not this
- SPDU is the end of the SSDU.
- .PP
- The encoding for this field shall be:
- .LP
- a)
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .PP
- 8.3.3.4
- The User Data field, if present, shall contain a segment of the
- associated SSDU. The User Data field shall be present if the Enclosure Item
- has bit\ 2\ =\ 0.
- .sp 2P
- .LP
- 8.3.4
- \fIACCEPT (AC) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.4.1
- The SI field shall contain the value 14.
- .sp 9p
- .RT
- .PP
- 8.3.4.2
- The parameter fields shall be as specified in Table\ 14/X.225.
- .PP
- 8.3.4.3
- The Called SS\(hyuser Reference PV field shall be as defined by
- the called SS\(hyuser.
- .PP
- 8.3.4.4
- The Common Reference PV field shall be as defined by the called
- SS\(hyuser.
- .PP
- 8.3.4.5
- The Additional Reference Information PV field shall be as defined by the
- called SS\(hyuser.
- .PP
- 8.3.4.6
- If the Connect/Accept Item is absent, the default values defined for the
- enclosed PI units shall apply.
- .PP
- 8.3.4.7
- The Protocol Options PV field shall indicate whether or not the
- responder is able to receive extended concatenated SPDUs (see \(sc\ 6.3.7). The
- encoding and default for this field is defined in \(sc\ 8.3.1.7.
- .PP
- 8.3.4.8
- The TSDU Maximum Size parameter shall be present if a TSDU maximum size
- is proposed by the receiver. The encoding and default for this field
- is defined in \(sc\ 8.3.1.8. If an OVERFLOW ACCEPT SPDU has been sent previously,
- the TSDU maximum size parameter shall have the same value as was indicated
- on the OVERFLOW ACCEPT SPDU.
- .bp
- .ce
- \fBH.T. [T14.225]\fR
- .ce
- TABLE\ 14/X.225
- .ce
- \fBParameters of the ACCEPT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- Connection identifier nm 1 Called SS\(hyuser reference nm \ 9 64\ octets maximum T{
- \(sc\ 7.4.1\|a)\|1)
- \(sc\ 8.3.4.3
- T}
- Common reference nm 11 64\ octets maximum T{
- \(sc\ 7.4.1\|a)\|2)
- \(sc\ 8.3.4.4
- T} T{
- Additional reference information
- T} nm 12 4\ octets maximum T{
- \(sc\ 7.4.1\|a)\|3)
- \(sc\ 8.3.4.5
- T}
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- T{
- Connect/Accept item (see \(sc\ 8.3.4.6)
- T} nm 5 Protocol options m 19 1 octet T{
- \(sc\ 7.4.1\|b)\|1)
- \(sc\ 8.3.4.7
- T}
- TSDU maximum size nm 21 4 octets T{
- \(sc\ 7.4.1\|b)\|2)
- \(sc\ 8.3.4.8
- T} Version number m 22 1 octet T{
- \(sc\ 7.4.1\|b)\|3)
- \(sc\ 8.3.4.9
- T} Initial serial number nm 23 6\ octets maximum T{
- \(sc\ 7.4.1\|b)\|4)
- \(sc\ 8.3.4.10
- T} Token setting item nm 26 1 octet T{
- \(sc\ 7.4.1\|b)\|5)
- \(sc\ 8.3.4.11
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Token item nm 16 1 octet T{
- \(sc\ 7.4.1\|c)
- \(sc\ 8.3.4.12
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Session user requirements nm 20 2 octets T{
- \(sc\ 7.4.1\|d)
- \(sc\ 8.3.4.13
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Calling session selector nm 51 16\ octets maximum T{
- \(sc\ 7.4.1\|e)
- \(sc\ 8.3.4.14
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Responding session selector nm 52 16\ octets maximum T{
- \(sc\ 7.4.1\|e)
- \(sc\ 8.3.4.15
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.4.17
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.4.1\|f
- )
- \(sc\ 8.3.4.16
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtableau 14/X.225 [T14.225], p. 7\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 6
- .bp
- .PP
- 8.3.4.9
- The Version Number PV field shall have the value and encoding
- specified in \(sc\ 8.3.1.9.
- .PP
- If an OVERFLOW ACCEPT SPDU has been sent previously on this
- session connection then the Version Number parameter shall have the same
- value as was indicated in the OVERFLOW ACCEPT SPDU.
- .LP
- 8.3.4.10\ \ The Initial Serial Number PV field shall only be present if the
- activity management functional unit is not selected and if any of the following
- functional units are selected:
- .LP
- a)
- minor synchronize functional unit;
- .LP
- b)
- major synchronize functional unit;
- .LP
- c)
- resynchronize functional unit.
- .PP
- The encoding for the Initial Serial Number PV field is defined
- in \(sc\ 8.3.1.10.
- .LP
- 8.3.4.11\ \ The Token Setting Item PV field indicates the initial token
- settings for each token available on this session connection. The bits and
- encoding are defined in \(sc\ 8.3.1.11. In the case where the initial assignment
- of the related token was indicated as the called SS\(hyuser's choice (in
- the Token Setting Item PV field of the associated CONNECT SPDU), the field
- shall contain the value chosen by the called SS\(hyuser. Otherwise, the
- values set in the
- CONNECT SPDU must be returned. The value \*Qcalled SS\(hyuser's choice\*U
- is not a
- permitted value in the ACCEPT SPDU. The values are relevant only if the
- appropriate functional units are requested in the Session User Requirements
- parameter. If no functional unit requiring a token has been requested, this
- parameter need not be present.
- .LP
- 8.3.4.12\ \ The Token Item PV field, if present, shall indicate which tokens
- are requested by the called SS\(hyuser:
- .LP
- a)
- bit\ 7\ =\ 1\ release token;
- .LP
- b)
- bit\ 5\ =\ 1\ major/activity token;
- .LP
- c)
- bit\ 3\ =\ 1\ synchronize\(hyminor token;
- .LP
- d)
- bit\ 1\ =\ 1\ data token.
- .LP
- Bits 2, 4, 6 and 8 are reserved.
- .PP
- Bits corresponding to tokens which are not available are
- ignored.
- .LP
- 8.3.4.13\ \ The bits in the Session User Requirements PV field shall
- indicate the functional units proposed by the called SS\(hyuser, for use
- over this session connection. This PV field shall not have both bit\ 1
- set (half\(hyduplex
- functional unit) and bit\ 2 set (duplex functional unit), but the chosen bit
- must have been set in the CONNECT SPDU. The encoding and default value is
- defined in \(sc\ 8.3.1.12.
- .LP
- 8.3.4.14\ \ The Calling Session Selector, if present, shall be the same value
- as in the CONNECT SPDU.
- .LP
- 8.3.4.15\ \ The Responding Session Selector, if present, shall be derived from
- the Responding Session Address supplied by the responding SS\(hyuser. When this
- parameter is absent, the default shall be as though this parameter is set
- to a null value.
- .LP
- 8.3.4.16\ \ The length of the User Data parameter is limited such that
- the total length (including SI and LI) of the SPDU does not exceed 65\|539\
- octets. If the Enclosure Item parameter is present, the User Data parameter
- is mandatory.
- .LP
- 8.3.4.17\ \ The Enclosure Item parameter, if present, shall indicate that the
- SPDU is the beginning, but not end of the SSDU. This parameter shall not be
- present if protocol version\ 1 is selected. The encoding for this field shall
- be:
- .LP
- a)
- bit\ 1\ =\ 1\ beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .PP
- See \(sc 8.4.2 for encoding subsequent SPDUs in the sequence.
- .bp
- .sp 2P
- .LP
- 8.3.5
- \fIREFUSE (RF) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.5.1
- The SI field shall contain the value 12.
- .sp 9p
- .RT
- .PP
- 8.3.5.2
- The parameter fields shall be as specified in Table\ 15/X.225.
- .ce
- \fBH.T. [T15.225]\fR
- .ce
- TABLE\ 15/X.225
- .ce
- \fBParameters of the REFUSE SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- Connection identifier nm 1 Called SS\(hyuser reference nm \ 9 64\ octets maximum T{
- \(sc\ 7.5.1\|a)\|1)
- \(sc\ 8.3.5.3
- T}
- Common reference nm 11 64\ octets maximum T{
- \(sc\ 7.5.1\|a)\|2)
- \(sc\ 8.3.5.4
- T} T{
- Additional reference information
- T} nm 12 4\ octets maximum T{
- \(sc\ 7.5.1\|a)\|3)
- \(sc\ 8.3.5.5
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Transport disconnect nm 17 1\ octet \(sc\ 7.5.1\|b) \(sc\ 8.3.5.6
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Session user requirements nm 20 2\ octets \(sc\ 7.5.1\|c) \(sc\ 8.3.5.7
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Version number nm 22 1\ octet \(sc\ 7.5.1\|d) \(sc\ 8.3.5.8
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.5.10
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reason code nm 50 See reference T{
- \(sc\ 7.5.1\|e)
- \(sc\ 8.3.5.9
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 15/X.255 [T15.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- 8.3.5.3
- The Called SS\(hyuser Reference PV field shall be as defined by the called
- SS\(hyuser.
- .PP
- 8.3.5.4
- The Common Reference PV field shall be as defined by the called
- SS\(hyuser.
- .PP
- 8.3.5.5
- The Additional Reference Information PV field shall be as defined by the
- called SS\(hyuser.
- .PP
- 8.3.5.6
- The Transport Disconnect PV field shall indicate whether or not
- the transport connection is to be kept. The encoding for this field shall
- be:
- .LP
- a)
- bit\ 1\ =\ 0\ transport connection is kept;
- .LP
- b)
- bit\ 1\ =\ 1\ transport connection is released.
- .LP
- Bits 2\(hy8 are reserved.
- .PP
- If this parameter is absent, the transport connection is
- released.
- .bp
- .PP
- 8.3.5.7
- The Session User Requirements PV field shall only be present if
- the Reason Code is 2 and shall indicate the functional units required by the
- called SS\(hyuser and supported by the responder. The encoding shall be
- the same as in the CONNECT SPDU (see \(sc\ 8.3.1.12).
- .PP
- 8.3.5.8
- The Version Number PV field shall have the value and encoding
- specified in \(sc\ 8.3.1.9. If an OVERFLOW ACCEPT SPDU has been sent previously
- on this session connection, then the Version Number parameter shall have
- the same value as was indicated in the OVERFLOW ACCEPT SPDU.
- .PP
- 8.3.5.9
- The Reason Code PV field shall contain a reason code in the first octet.
- Depending on the value of this first octet, additional octets may be
- used. The following values are defined for the first octet:
- .LP
- a)
- 0\ :
- rejection by the called SS user; reason not
- specified;
- .LP
- b)
- 1\ :
- rejection by called SS\(hyuser due to temporary
- congestion;
- .LP
- c)
- 2\ :
- rejection by called SS\(hyuser. The following
- octets may be used for user data up to a length such
- that the total length (including SI and LI)
- of the SPDU does not exceed 65\|539\ octets;
- .LP
- d)\ *
- 128\ +
- 1\ :
- session selector unknown;
- .LP
- e)\ *
- 128\ +
- 2\ :
- SS\(hyuser not attached to SSAP;
- .LP
- f
- )
- 128\ +
- 3\ :
- SPM congestion at connect time;
- .LP
- g)\ *
- 128\ +
- 4\ :
- proposed protocol versions not
- supported;
- .LP
- h)
- 128\ +
- 5\ :
- rejection by the SPM; reason not specified;
- .LP
- i)
- 128\ +
- 6\ :
- rejection by the SPM; implementation
- restriction stated in the PICS.
- .PP
- \fINote\fR \ \(em\ Reasons marked with an asterisk (*) may be reported to
- the SS\(hyuser as persistent, others reported as transient.
- .PP
- All other values are reserved.
- .PP
- The Session User Requirements parameter may only be present if the
- value of the reason code is\ 2. If the reason code has the value\ 2 and the
- Session User Requirements parameter is not present, the default value shall
- be assumed (see \(sc\ 8.3.1.12).
- .PP
- If the Enclosure Item parameter is present, the Reason Code parameter is
- mandatory and shall be followed by octets of user data.
- .RT
- .LP
- 8.3.5.10\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.6
- \fIFINISH (FN) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.6.1
- The SI field shall contain the value\ 9.
- .sp 9p
- .RT
- .PP
- 8.3.6.2
- The parameter fields shall be as specified in Table 16/X.225.
- .ce
- \fBH.T. [T16.225]\fR
- .ce
- TABLE\ 16/X.225
- .ce
- \fBParameters of the FINISH SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Transport disconnect nm 17 1 octet \(sc\ 7.6.1\|a) \(sc\ 8.3.6.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.6.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.6.1\|b)
- \(sc\ 8.3.6.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 16/X.225 [T16.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .PP
- 8.3.6.3
- The Transport Disconnect PV field shall indicate whether or not
- the transport connection is to be kept. The encoding for this field shall
- be:
- .LP
- a)
- bit\ 1\ =\ 0\ transport connection is kept;
- .LP
- b)
- bit\ 1\ =\ 1\ transport connection is released.
- .LP
- Bits 2\(hy8 are reserved.
- .PP
- If this parameter is absent, the transport connection shall be
- released.
- .PP
- 8.3.6.4
- The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .PP
- 8.3.6.5
- The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.7
- \fIDISCONNECT (DN) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.7.1
- The SI field shall contain the value 10.
- .sp 9p
- .RT
- .PP
- 8.3.7.2
- The parameter field shall be as specified in Table\ 17/X.225.
- .LP
- .sp 2
- .ce
- \fBH.T. [T17.225]\fR
- .ce
- TABLE\ 17/X.225
- .ce
- \fBParameters of the DISCONNECT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.7.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.7.1
- \(sc\ 8.3.7.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 17/X.225 [T17.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 2
- .PP
- 8.3.7.3
- The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .PP
- 8.3.7.4
- The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.8
- \fINOT FINISHED (NF) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.8.1
- The SI field shall contain the value 8.
- .sp 9p
- .RT
- .PP
- 8.3.8.2
- The parameter field shall be as specified in Table\ 18/X.225.
- .bp
- .ce
- \fBH.T. [T18.225]\fR
- .ce
- TABLE\ 18/X.225
- .ce
- \fBParameters of the NOT FINISHED SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.8.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.8.1
- \(sc\ 8.3.8.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 18/X.225 [T18.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- 8.3.8.3
- The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. The length of the User Data parameter is limited
- such that the total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .PP
- 8.3.8.4
- The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.9
- \fIABORT (AB) SPDU\fR
- .sp 1P
- .RT
- .PP
- 8.3.9.1
- The SI field shall contain the value 25.
- .sp 9p
- .RT
- .PP
- 8.3.9.2
- The parameter fields shall be as specified in Table\ 19/X.225.
- .LP
- .sp 1
- .ce
- \fBH.T. [T19.225]\fR
- .ce
- TABLE\ 19/X.225
- .ce
- \fBParameters of the ABORT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Transport disconnect m 17 1\ octet \(sc\ 7.9.1\|a) \(sc\ 8.3.9.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reflect parameter values nm 49 9\ octets maximum \(sc\ 7.9.1\|b) \(sc\ 8.3.9.4
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.9.6
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.9.1\|c)
- \(sc\ 8.3.9.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 19/X.225 [T19.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 1
- .bp
- .PP
- 8.3.9.3
- The Transport Disconnect PV field shall indicate whether or
- not the transport connection is to be kept, together with an optional reason
- code. The encoding for this field shall be:
- .LP
- a)
- bit\ 1\ =\ 0\ transport connection is kept;
- .LP
- b)
- bit\ 1\ =\ 1\ transport connection is released;
- .LP
- c)
- bit\ 2\ =\ 1\ user abort (see \(sc\ 8.3.9.5);
- .LP
- d)
- bit\ 3\ =\ 1\ protocol error (see \(sc\ 8.3.9.4);
- .LP
- e)
- bit\ 4\ =\ 1\ no reason;
- .LP
- f
- )
- bit\ 5\ =\ 1\ implementation restriction stated in the
- PICS.
- .LP
- Bits 6\(hy8 are reserved.
- .PP
- 8.3.9.4
- The Reflect Parameter Values PV field shall only be present if
- the Transport Disconnect PV field indicates protocol error and shall contain
- an implementation defined value and semantics.
- .PP
- 8.3.9.5
- The User Data PV field shall only be present if the Transport
- Disconnect PV field indicates user abort and shall contain user data supplied
- by the SS\(hyuser.
- .PP
- If this SPDU is to be sent on the transport expedited flow, the
- length of the User Data parameter is limited to 9\ octets and the Enclosure
- Item shall not be present. If the SPDU is to be sent on the transport normal
- flow, the length of the User Data parameter is limited such that the total
- length
- (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .PP
- 8.3.9.6
- The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.10
- \fIABORT ACCEPT (AA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.10.1\ \ The SI field shall contain the value 26.
- .sp 9p
- .RT
- .LP
- 8.3.10.2\ \ There is no parameter field associated with this SPDU.
- .sp 2P
- .LP
- 8.3.11
- \fIDATA TRANSFER (DT) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.11.1\ \ The SI field shall contain the value 1.
- .sp 9p
- .RT
- .LP
- 8.3.11.2\ \ The parameter field shall be as specified in Table\ 20/X.225.
- .ce
- \fBH.T. [T20.225]\fR
- .ce
- TABLE\ 20/X.225
- .ce
- \fBParameters of the DATA TRANSFER SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet T{
- \(sc\ 7.11.1\|a)
- \(sc\ 8.3.10.3
- T}
- _
- .T&
- lw(132p) | lw(18p) | lw(18p) | cw(30p) | lw(30p) .
- User information field unlimited T{
- \(sc\ 7.11.1\|b)
- \(sc\ 8.3.10.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 20/X.225 [T20.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.11.3\ \ The Enclosure Item PV field, if present, shall indicate whether or
- not this SPDU is the beginning or end of the SSDU. This field shall be
- present if segmenting has been selected. This field shall not be present
- if segmenting has not been selected. The encoding for this field shall
- be:
- .LP
- a)
- bit\ 1\ =\ 1\ beginning of SSDU;
- .LP
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .bp
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .PP
- If this field is not present, the default shall be as though
- bit\ 1\ =\ 1 and bit\ 2\ =\ 1 (i.e.\ beginning and end of SSDU).
- .LP
- 8.3.11.4\ \ The User Information Field, if present, shall contain user data
- supplied by the SS\(hyuser. The User Information Field shall be present if the
- Enclosure Item is not present, or has bit\ 2\ =\ 0.
- .sp 2P
- .LP
- 8.3.12
- \fIEXPEDITED (EX) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.12.1\ \ The SI field shall contain the value 5.
- .sp 9p
- .RT
- .LP
- 8.3.12.2\ \ This SPDU contains only a User Information Field as specified in
- Table\ 21/X.225.
- .ce
- \fBH.T. [T21.225]\fR
- .ce
- TABLE\ 21/X.225
- .ce
- \fBParameters of the EXPEDITED SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- lw(132p) | lw(18p) | lw(18p) | cw(30p) | lw(30p) .
- User information field 14\ octets maximum T{
- \(sc\ 7.12.1
- \(sc\ 8.3.12.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 21/X.225 [T21.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.12.3\ \ The User Information Field shall contain user data supplied by the
- SS\(hyuser.
- .sp 2P
- .LP
- 8.3.13
- \fITYPED DATA (TD) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.13.1\ \ The SI field shall contain the value 33.
- .sp 9p
- .RT
- .LP
- 8.3.13.2\ \ The parameter field shall be as specified in Table\ 22/X.225.
- .ce
- \fBH.T. [T22.225]\fR
- .ce
- TABLE\ 22/X.225
- .ce
- \fBParameters of the TYPED DATA SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet T{
- \(sc\ 7.13.1\|a)
- \(sc\ 8.3.13.3
- T}
- _
- .T&
- lw(132p) | lw(18p) | lw(18p) | cw(30p) | lw(30p) .
- User information field unlimited T{
- \(sc\ 7.13.1\|b)
- \(sc\ 8.3.13.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 22/X.225 [T22.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .LP
- 8.3.13.3\ \ The Enclosure Item PV field, if present, shall indicate whether or
- not this SPDU is the beginning or end of the SSDU. This field shall be
- present if segmenting has been selected. This field shall not be present
- if segmenting has not been selected. The encoding for this field shall
- be:
- .LP
- a)
- bit\ 1\ =\ 1\ beginning of SSDU;
- .LP
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .PP
- If this field is not present, the default shall be as though
- bit\ 1\ =\ 1 and bit\ 2\ =\ 1 (i.e.\ beginning and end of SSDU).
- .LP
- 8.3.13.4\ \ The User Information Field, if present, shall contain user data
- supplied by the SS\(hyuser. The User Information Field shall be present if the
- Enclosure Item is not present, or has bit\ 2\ =\ 0.
- .sp 2P
- .LP
- 8.3.14
- \fICAPABILITY DATA (CD) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.14.1\ \ The SI field shall contain the value 61.
- .sp 9p
- .RT
- .LP
- 8.3.14.2\ \ The parameter field shall be as specified in Table\ 23/X.225.
- .LP
- .sp 2
- .ce
- \fBH.T. [T23.225]\fR
- .ce
- TABLE\ 23/X.225
- .ce
- \fBParameters of the CAPABILITY DATA SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.14.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.14.1
- \(sc\ 8.3.14.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 23/X.225 [T23.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 2
- .LP
- 8.3.14.3\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.14.4\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.15
- \fICAPABILITY DATA ACK (CDA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.15.1\ \ The SI field shall contain the value 62.
- .sp 9p
- .RT
- .LP
- 8.3.15.2\ \ The parameter field shall be as specified in Table\ 24/X.225.
- .bp
- .ce
- \fBH.T. [T24.225]\fR
- .ce
- TABLE\ 24/X.225
- .ce
- \fBParameters of the CAPABILITY DATA ACK SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.15.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.15.1
- \(sc\ 8.3.15.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 24/X.225 [T24.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.15.3\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.15.4\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.16
- \fIGIVE TOKENS (GT) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.16.1\ \ The SI field shall contain the value 1.
- .sp 9p
- .RT
- .LP
- 8.3.16.2\ \ The parameter field shall be as specified in Table\ 25/X.225.
- .ce
- \fBH.T. [T25.225]\fR
- .ce
- TABLE\ 25/X.225
- .ce
- \fBParameters of the GIVE TOKENS SPDU\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Token item nm 16 1 octet \(sc\ 7.16.1 \(sc\ 8.3.16.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.16.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.16.1\|b)
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 25/X.225 [T25.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.16.3\ \ The Token Item PV field, if present, shall indicate which tokens
- are being given by the sending SS\(hyuser:
- .LP
- a)
- bit\ 7\ =\ 1\ release token;
- .LP
- b)
- bit\ 5\ =\ 1\ major/activity token;
- .bp
- .LP
- c)
- bit\ 3\ =\ 1\ synchronize\(hyminor token;
- .LP
- d)
- bit\ 1\ =\ 1\ data token.
- .LP
- Bits 2, 4, 6 and 8 are reserved.
- .PP
- Bits corresponding to tokens which are not available are ignored.
- .PP
- If this PV field is present, at least one bit corresponding to an
- available token shall be set to one.
- .RT
- .LP
- 8.3.16.4\ \ This SPDU may be used without the Token Item PI unit when
- concatenated with Category\ 2 SPDUs according to Tables\ 7/X.225 and\ 8/X.225.
- With some concatenations (see Tables\ 7/X.225 and\ 8/X.225) the Token Item PI
- unit must be absent.
- .LP
- 8.3.16.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.16.6\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall only be present if the
- Token Item PI unit is present and shall not be present if protocol version\
- 1 is selected. The
- length of the User Data parameter is limited such that the total length
- (including SI and LI) does not exceed 65\|539\ octets.
- .sp 2P
- .LP
- 8.3.17
- \fIPLEASE TOKENS (PT) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.17.1\ \ The SI field shall contain the value 2.
- .sp 9p
- .RT
- .LP
- 8.3.17.2\ \ The parameter fields shall be as specified in Table\ 26/X.225.
- .ce
- \fBH.T. [T26.225]\fR
- .ce
- TABLE\ 26/X.225
- .ce
- \fBParameters of the PLEASE TOKENS SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Token item nm 16 1\ octet T{
- \(sc\ 7.17.1.\|a)
- \(sc\ 8.3.17.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.17.6
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.17.1\|b)
- \(sc\ 8.3.17.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 26/X.225 [T26.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.17.3\ \ The Token Item PV field, if present, shall indicate which tokens
- are being requested by the sending SS\(hyuser:
- .LP
- a)
- bit\ 7\ =\ 1\ release token;
- .LP
- b)
- bit\ 5\ =\ 1\ major/activity token;
- .LP
- c)
- bit\ 3\ =\ 1\ synchronize\(hyminor token;
- .LP
- d)
- bit\ 1\ =\ 1\ data token.
- .LP
- Bits 2, 4, 6 and 8 are reserved.
- .PP
- Bits corresponding to tokens which are not available are ignored.
- .PP
- If this PV field is present, at least one bit corresponding to an
- available token shall be set to one.
- .bp
- .RT
- .LP
- 8.3.17.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall only be present if the
- Token Item PI unit is present.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.17.5\ \ This SPDU may be used without the Token Item PI unit and the User
- Data PGI unit when concatenated with Category\ 2 SPDUs according to
- Tables\ 7/X.225 and\ 8/X.225. In this case, the SPDU does not achieve any
- Please Token function.
- .LP
- 8.3.17.6\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.18
- \fIGIVE TOKENS CONFIRM (GTC) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.18.1\ \ The SI field shall contain the value 21.
- .sp 9p
- .RT
- .LP
- 8.3.18.2\ \ The parameter fields shall be as specified in Table 27/X.225.
- .ce
- \fBH.T. [T27.225]\fR
- .ce
- TABLE\ 27/X.225
- .ce
- \fBParameters of the GIVE TOKENS CONFIRM SPDU
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.18.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.18.1
- \(sc\ 8.3.18.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 27/X.225 [T27.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.18.3\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.18.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall not be present if protocol
- version\ 1
- is selected. The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .sp 2P
- .LP
- 8.3.19
- \fIGIVE TOKENS ACK (GTA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.19.1\ \ The SI field shall contain the value 22.
- .sp 9p
- .RT
- .LP
- 8.3.19.2\ \ There is no parameter field associated with this SPDU.
- .sp 2P
- .LP
- 8.3.20
- \fIMINOR SYNC POINT (MIP) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.20.1\ \ The SI field shall contain the value 49.
- .sp 9p
- .RT
- .LP
- 8.3.20.2\ \ The parameter fields shall be as specified in Table\ 28/X.225.
- .bp
- .ce
- \fBH.T. [T28.225]\fR
- .ce
- TABLE\ 28/X.225
- .ce
- \fBParameters of the MINOR SYNC POINT SPDU\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Sync type item nm 15 1\ octet T{
- \(sc\ 7.20.1\|a)
- \(sc\ 8.3.20.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.20.1\|b)
- \(sc\ 8.3.20.4
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.20.6
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.20.1\|c)
- \(sc\ 8.3.20.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 28/X.225 [T28.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.20.3\ \ The Sync Type Item PV field, if present, shall indicate that an
- explicit confirmation is not required:
- .LP
- bit\ 1\ =\ 1\ explicit confirmation not required.
- .LP
- Bits 2\(hy8 are reserved.
- .PP
- This parameter field shall be absent if an explicit confirmation is required.
- .LP
- 8.3.20.4\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.20.5\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.20.6\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.21
- \fIMINOR SYNC (MIA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.21.1\ \ The SI field shall contain the value 50.
- .sp 9p
- .RT
- .LP
- 8.3.21.2\ \ The parameter fields shall be as specified in Table\ 29/X.225.
- .ce
- \fBH.T. [T29.225]\fR
- .ce
- TABLE\ 29/X.225
- .ce
- \fBParameters of the MINOR SYNC ACK SPDU\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.21.1\|a)
- \(sc\ 8.3.21.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.21.5
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 46 See reference T{
- \(sc\ 7.21.1\|b)
- \(sc\ 8.3.21.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 29/X.225 [T29.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .LP
- 8.3.21.3\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.21.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.21.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.22
- \fIMAJOR SYNC POINT (MAP) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.22.1\ \ The SI field shall contain the value 41. This is the same value
- as the SI field for the ACTIVITY END SPDU (see \(sc\ 8.3.35).
- .sp 9p
- .RT
- .LP
- 8.3.22.2\ \ The parameter fields shall be as specified in Table\ 30/X.225.
- .ce
- \fBH.T. [T30.225]\fR
- .ce
- TABLE\ 30/X.225
- .ce
- \fBParameters of the MAJOR SYNC POINT SPDU\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Sync type item m 15 1\ octet T{
- \(sc\ 7.22.1\|a)
- \(sc\ 8.3.22.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.22.1\|b)
- \(sc\ 8.3.22.4
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.22.6
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.22.1\|c)
- \(sc\ 8.3.22.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 30/X.225 [T30.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.22.3\ \ The Sync Type Item PV field shall indicate that this is not the
- end of an activity:
- .LP
- bit\ 1\ =\ 1\ major synchronization point without end of activity.
- .LP
- Bits 2\(hy8 are reserved.
- .LP
- 8.3.22.4\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.22.5\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed 65\|539\ octets.
- .LP
- 8.3.22.6\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.23
- \fIMAJOR SYNC ACK (MAA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.23.1\ \ The SI field shall contain the value 42.
- .sp 9p
- .RT
- .LP
- 8.3.23.2\ \ The parameter fields shall be as specified in Table\ 31/X.225.
- .bp
- .ce
- \fBH.T. [T31.225]\fR
- .ce
- TABLE\ 31/X.225
- .ce
- \fBParameters of the MAJOR SYNC ACK SPDU\fR
- .ce
- \fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.23.1\|a)
- \(sc\ 8.3.23.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.23.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.23.1\|b)
- \(sc\ 8.3.23.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 31/X.225 [T31.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.23.3\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.23.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- \fINote\fR \ \(em\ This SPDU is identical to the ACTIVITY END ACK SPDU
- (see \(sc\ 8.3.36).
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .RT
- .LP
- 8.3.23.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.24
- \fIRESYNCHRONIZE (RS) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.24.1\ \ The SI field shall contain the value 53.
- .sp 9p
- .RT
- .LP
- 8.3.24.2\ \ The parameter fields shall be as specified in Table\ 32/X.245.
- .LP
- 8.3.24.3\ \ The Token Setting Item PV field indicates the requesting SS\(hyuser's
- proposed settings for each available token. The bits of the Token Setting
- Item PV field are defined as bit pairs:
- .LP
- a)
- bits\ 8,\ 7\ release token;
- .LP
- b)
- bits\ 6,\ 5\ major/activity token;
- .LP
- c)
- bits\ 4,\ 3\ synchronize\(hyminor token;
- .LP
- d)
- bits\ 2,\ 1\ data token.
- .PP
- The encoding for each bit pair shall be:
- .LP
- e)
- 00\ :\ requestor's side;
- .LP
- f
- )
- 01\ :\ acceptor's side;
- .LP
- g)
- 10\ :\ accepting SS\(hyuser's choice;
- .LP
- h)
- 11\ :\ reserved.
- .PP
- The values are relevant only if the appropriate token is
- available. If no token is available, this parameter need not be present.
- .bp
- .ce
- \fBH.T. [T32.225]\fR
- .ce
- TABLE\ 32/X.225
- .ce
- \fBParameters of the RESYNCHRONIZE SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Token setting item nm 26 1\ octet T{
- \(sc\ 7.24.1\|a)
- \(sc\ 8.3.24.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Resync type m 27 1\ octet T{
- \(sc\ 7.24.1\|b)
- \(sc\ 8.3.24.4
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.24.1\|c)
- \(sc\ 8.3.24.5
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.24.7
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.24.1\|d)
- \(sc\ 8.3.24.6
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtableau 32/X.225 [T32.225], p. 25\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 2
- .LP
- 8.3.24.4\ \ The Resync Type PV field indicates the resynchronize type which
- is required:
- .LP
- a)
- 0\ :\ resynchronize restart;
- .LP
- b)
- 1\ :\ resynchronize abandon;
- .LP
- c)
- 2\ :\ resynchronize set.
- .PP
- All other values are reserved.
- .LP
- 8.3.24.5\ \ The Serial Number PV field shall be encoded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.24.6\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .LP
- 8.3.24.7\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.25
- \fIRESYNCHRONIZE ACK (RA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.25.1\ \ The SI field shall contain the value 34.
- .sp 9p
- .RT
- .LP
- 8.3.25.2\ \ The parameter fields shall be as specified in Table\ 33/X.245.
- .bp
- .ce
- \fBH.T. [T33.225]\fR
- .ce
- TABLE\ 33/X.225
- .ce
- \fBParameters of the RESYNCHRONIZE ACK SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Token setting item nm 26 1\ octet T{
- \(sc\ 7.25.1\|a)
- \(sc\ 8.3.25.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.25.1\|b)
- \(sc\ 8.3.25.4
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.25.6
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.25.1\|c)
- \(sc\ 8.3.25.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 33/X.225 [T33.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.25.3\ \ The Token Setting Item PV field indicates token settings for each
- token available on the session connection. The bits and encoding are defined
- in \(sc\ 8.3.24.3. For the case where the requesting SS\(hyuser has indicated
- that the
- assignment is the accepting SS\(hyuser's choice, the field shall contain the
- values chosen by the accepting SS\(hyuser. Otherwise, the values in the
- RESYNCHRONIZE SPDU must be returned.
- .PP
- This parameter need not be present if no tokens are available.
- .LP
- 8.3.25.4\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.25.5\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .LP
- 8.3.25.6\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.26
- \fIPREPARE (PR) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.26.1\ \ The SI field shall contain the value 7.
- .sp 9p
- .RT
- .LP
- 8.3.26.2\ \ The parameter field shall be as specified in Table\ 34/X.225.
- .ce
- \fBH.T. [T34.225]\fR
- .ce
- TABLE\ 34/X.225
- .ce
- \fBParameters of the PREPARE SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Prepare type m 24 1\ octet T{
- \(sc\ 7.26.1
- \(sc\ 8.3.26.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 34/X.225 [T34.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .LP
- 8.3.26.3\ \ The Prepare Type PV field indicates which SPDU should be expected
- on the transport normal flow. The value for this field shall be:
- .LP
- a)
- 1\ Prepare for MAJOR SYNC ACK SPDU;
- .LP
- b)
- 2\ Prepare for RESYNCHRONIZE SPDU;
- .LP
- c)
- 3\ Prepare for RESYNCHRONIZE ACK SPDU;
- .LP
- d)
- 4\ Prepare for ABORT SPDU.
- .PP
- All other values are reserved and shall not be used.
- .sp 2P
- .LP
- 8.3.27
- \fIEXCEPTION REPORT (ER) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.27.1\ \ The SI field shall contain the value 0.
- .sp 9p
- .RT
- .LP
- 8.3.27.2\ \ The parameter field shall be as specified in Table\ 35/X.225.
- .ce
- \fBH.T. [T35.225]\fR
- .ce
- TABLE\ 35/X.225
- .ce
- \fBParameters of the EXCEPTION REPORT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reflect parameter values m 49 65\|531\ octets maximum T{
- \(sc\ 7.27.1
- \(sc\ 8.3.27.3
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 35/X.225 [T35.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.27.3\ \ The Reflect Parameter Values PV field shall contain the bit
- pattern of the SPDU in error, up to and including the detected error, to a
- maximum of \fIn\fR octets,
- \v'6p'
- .sp 1P
- .ce 1000
- where 1024 \(= \fIn\fR \(= 65\|531
- .ce 0
- .sp 1P
- .PP
- .sp 1
- \fINote\fR \ \(em\ Not all implementations may be able to deal with field
- lengths greater than\ 1024. It is recommended that, whenever possible, the
- Reflect Parameters PV field should contain the bit pattern of the SPDU in
- error up to and including the detected error.
- .sp 2P
- .LP
- 8.3.28
- \fIEXCEPTION DATA (ED) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.28.1\ \ The SI field shall contain the value 48.
- .sp 9p
- .RT
- .LP
- 8.3.28.2\ \ The parameter fields shall be as specified in Table\ 36/X.225.
- .LP
- 8.3.28.3\ \ The Reason Code PV field shall contain one of the following
- values:
- .LP
- a)
- \ \ 0\ No specific reason stated;
- .LP
- b)
- \ \ 1\ Temporarily unable to continue;
- .LP
- c)
- \ \ 2\ Reserved;
- .LP
- d)
- \ \ 3\ User sequence error;
- .LP
- e)
- \ \ 4\ Reserved;
- .LP
- f
- )
- \ \ 5\ Local SS\(hyuser error;
- .LP
- g)
- \ \ 6\ Unrecoverable procedural error;
- .LP
- h)
- 128\ Demand data token.
- .PP
- All other values are reserved and shall not be used.
- .bp
- .ce
- \fBH.T. [T36.225]\fR
- .ce
- TABLE\ 36/X.225
- .ce
- \fBParameters of the EXCEPTION DATA SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reason code m 50 1\ octet T{
- \(sc\ 7.28.1\|a)
- \(sc\ 8.3.25.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.28.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.28.1\|b)
- \(sc\ 8.3.28.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtableau 36/X.225 [T36.225], p. 29\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.28.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .LP
- 8.3.28.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.29
- \fIACTIVITY START (AS) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.29.1\ \ The SI field shall contain the value 45.
- .sp 9p
- .RT
- .LP
- 8.3.29.2\ \ The parameter fields shall be as specified in Table\ 37/X.225.
- .ce
- \fBH.T. [T37.225]\fR
- .ce
- TABLE\ 37/X.225
- .ce
- \fBParameters of the ACTIVITY START SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Activity identifier m 41 6\ octets maximum T{
- \(sc\ 7.29.1\|a)
- \(sc\ 8.3.29.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.29.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.29.1\|b)
- \(sc\ 8.3.29.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 37/X.225 [T37.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.29.3\ \ The Activity Identifier PV field shall be as defined by the
- sending SS\(hyuser.
- .LP
- 8.3.29.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .bp
- .LP
- 8.3.29.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.30
- \fIACTIVITY RESUME (AR) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.30.1\ \ The SI field shall contain the value 29.
- .sp 9p
- .RT
- .LP
- 8.3.30.2\ \ The parameter fields shall be as specified in Table\ 38/X.225.
- .LP
- 8.3.30.3\ \ The Called SS\(hyuser Reference PV field shall be as defined by the
- sending SS\(hyuser.
- .LP
- 8.3.30.4\ \ The Calling SS\(hyuser Reference PV field shall be as defined
- by the
- sending SS\(hyuser.
- .LP
- 8.3.30.5\ \ The Common Reference PV field shall be as defined by the sending
- SS\(hyuser.
- .LP
- 8.3.30.6\ \ The Additional Reference Information PV field shall be as defined
- by the sending SS\(hyuser.
- .LP
- 8.3.30.7\ \ The Old Activity Identifier PV field shall be as defined by the
- sending SS\(hyuser.
- .ce
- \fBH.T. [T38.225]\fR
- .ce
- TABLE\ 38/X.225
- .ce
- \fBParameters of the ACTIVITY RESUME SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) , ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l
- ^ | ^ | ^ | l | c | c | c | l.
- Linking information m 33 Called SS\(hyuser reference nm \ 9 64\ octets maximum T{
- \(sc\ 7.30.1\|a)\|1)
- \(sc\ 8.3.30.3
- T}
- Calling SS\(hyuser reference nm 10 64\ octets maximum T{
- \(sc\ 7.30.1\|a)\|2)
- \(sc\ 8.3.30.4
- T} Common reference nm 11 64\ octets maximum T{
- \(sc\ 7.30.1\|a)\|3)
- \(sc\ 8.3.30.5
- T} T{
- Additional reference information
- T} nm 12 4\ octets maximum T{
- \(sc\ 7.30.1\|a)\|4)
- \(sc\ 8.3.30.6
- T} Old activity identifier m 41 6\ octets maximum T{
- \(sc\ 7.30.1\|a)\|5)
- \(sc\ 8.3.30.7
- T} Serial number m 42 6\ octets maximum T{
- \(sc\ 7.30.1\|a)\|6)
- \(sc\ 8.3.30.8
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- New activity identifier m 41 6\ octets maximum T{
- \(sc\ 7.30.1\|b)
- \(sc\ 8.3.30.9
- T}
- _
- .T&
- lw(42p) | lw(18p) | lw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.30.11
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.30.1\|c)
- \(sc\ 8.3.30.10
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 38/X.225 [T38.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .LP
- 8.3.30.8\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.30.9\ \ The New Activity Identifier PV field shall be as defined by the
- sending SS\(hyuser.
- .LP
- 8.3.30.10\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .LP
- 8.3.30.11\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 2P
- .LP
- 8.3.31
- \fIACTIVITY INTERRUPT (AI) SDPU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.31.1\ \ The SI field shall contain the value 25.
- .sp 9p
- .RT
- .LP
- 8.3.31.2\ \ The parameter fields shall be as specified in Table\ 39/X.225.
- .ce
- \fBH.T. [T39.225]\fR
- .ce
- TABLE\ 39/X.225
- .ce
- \fBParameters of the ACTIVITY INTERRUPT SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reason code nm 50 1\ octet \(sc\ 7.31.1 \(sc\ 8.3.31.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.31.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.31.1\|b)
- \(sc\ 8.3.31.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 39/X.225 [T39.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.31.3\ \ The Reason Code PV field shall contain one of the following
- values:
- .LP
- a)
- \ \ 0\ No specific reason stated;
- .LP
- b)
- \ \ 1\ Temporarily unable to continue;
- .LP
- c)
- \ \ 2\ Reserved;
- .LP
- d)
- \ \ 3\ User sequence error;
- .LP
- e)
- \ \ 4\ Reserved;
- .LP
- f
- )
- \ \ 5\ Local SS\(hyuser error;
- .LP
- g)
- \ \ 6\ Unrecoverable procedural error;
- .LP
- h)
- 128\ Demand data token.
- .PP
- All other values are reserved and shall not be used.
- .LP
- 8.3.31.4\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.31.5\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall not be present if protocol
- version\ 1 is selected.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .bp
- .sp 2P
- .LP
- 8.3.32
- \fIACTIVITY INTERRUPT ACK (AIA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.32.1\ \ The SI field shall contain the value 26.
- .sp 9p
- .RT
- .LP
- 8.3.32.2\ \ The parameter fields shall be as specified in Table\ 40/X.225.
- .ce
- \fBH.T. [T40.225]\fR
- .ce
- TABLE\ 40/X.225
- .ce
- \fBParameters of the ACTIVITY INTERRUPT ACK SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.32.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.32.1
- \(sc\ 8.3.32.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 40/X.225 [T40.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.32.3\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.32.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall not be present if protocol
- version\ 1 is selected.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .sp 2P
- .LP
- 8.3.33
- \fIACTIVITY DISCARD (AD) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.33.1\ \ The SI field shall contain the value 57.
- .sp 9p
- .RT
- .LP
- 8.3.33.2\ \ The parameter fields shall be as specified in Table\ 41/X.225.
- .ce
- \fBH.T. [T41.225]\fR
- .ce
- TABLE\ 41/X.225
- .ce
- \fBParameters of the ACTIVITY DISCARD SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reason code nm 50 1\ octet \(sc\ 7.33.1 \(sc\ 8.3.33.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.33.4
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.33.1\|b)
- \(sc\ 8.3.33.5
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 41/X.225 [T41.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .LP
- 8.3.33.3\ \ The Reason Code PV field shall contain one of the following
- values:
- .LP
- a)
- \ \ 0\ No specific reason stated;
- .LP
- b)
- \ \ 1\ Temporarily unable to continue;
- .LP
- c)
- \ \ 2\ Reserved;
- .LP
- d)
- \ \ 3\ User sequence error;
- .LP
- e)
- \ \ 4\ Reserved;
- .LP
- f
- )
- \ \ 5\ Local SS\(hyuser error;
- .LP
- g)
- \ \ 6\ Unrecoverable procedural error;
- .LP
- h)
- 128\ Demand data token.
- .PP
- All other values are reserved and shall not be used.
- .LP
- 8.3.33.4\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.33.5\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall not be present if protocol
- version\ 1 is selected.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .sp 2P
- .LP
- 8.3.34
- \fIACTIVITY DISCARD ACK (ADA) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.34.1\ \ The SI field shall contain the value 58.
- .sp 9p
- .RT
- .LP
- 8.3.34.2\ \ The parameter fields shall be as specified in Table\ 42/X.225.
- .ce
- \fBH.T. [T42.225]\fR
- .ce
- TABLE\ 42/X.225
- .ce
- \fBParameters of the ACTIVITY DISCARD ACK SPDU
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.3.34.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.34.1
- \(sc\ 8.3.34.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 42/X.225 [T42.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.34.3\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .LP
- 8.3.34.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser. This PGI unit shall not be present if protocol
- version\ 1 is selected.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .sp 2P
- .LP
- 8.3.35
- \fIACTIVITY END (AE) SPDU\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 8.3.35.1\ \ The SI field shall contain the value 41. This is the same value
- as the SI field for the MAJOR SYNC POINT SPDU (see \(sc\ 8.3.22).
- .sp 9p
- .RT
- .LP
- 8.3.35.2\ \ The parameter fields shall be as specified in Table\ 43/X.225.
- .bp
- .ce
- \fBH.T. [T43.225]\fR
- .ce
- TABLE\ 43/X.225
- .ce
- \fBParameters of the ACTIVITY END SPDU\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Serial number m 42 6\ octets maximum T{
- \(sc\ 7.36.1\|a)
- \(sc\ 8.3.35.3
- T}
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item nm 25 1 octet \(sc\ 7.37.1 \(sc\ 8.3.35.5
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 See reference T{
- \(sc\ 7.36.1\|b)
- \(sc\ 8.3.35.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtable 43/X.225 [T43.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- 8.3.35.3\ \ The Serial Number PV field shall be coded as specified in
- \(sc\ 8.3.1.10.
- .LP
- 8.3.35.4\ \ The User Data PV field, if present, shall contain user data
- supplied by the SS\(hyuser.
- .PP
- The length of the User Data parameter is limited such that the
- total length (including SI and LI) of the SPDU does not exceed
- 65\|539\ octets.
- .LP
- 8.3.35.5\ \ The Enclosure Item parameter, if present, shall be encoded as
- specified in \(sc\ 8.3.4.17. This parameter shall not be present if protocol
- version\ 1 is selected.
- .sp 1P
- .LP
- 8.3.36
- \fIACTIVITY END ACK (AEA) SPDU\fR
- .sp 9p
- .RT
- .PP
- The ACTIVITY END ACK SPDU is identical to the MAJOR SYNC ACK SPDU (see
- \(sc\ 8.3.23).
- .RT
- .sp 2P
- .LP
- 8.4
- \fIAdditional encoding rules for segmented SSDUs\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- ACCEPT SPDU
- .sp 9p
- .RT
- .LP
- REFUSE SPDU
- .LP
- FINISH SPDU
- .LP
- DISCONNECT SPDU
- .LP
- NOT FINISHED SPDU
- .LP
- ABORT SPDU
- .LP
- CAPABILITY DATA SPDU
- .LP
- CAPABILITY DATA ACK SPDU
- .LP
- GIVE TOKENS SPDU
- .LP
- PLEASE TOKENS SPDU
- .LP
- GIVE TOKENS CONFIRM SPDU
- .LP
- MINOR SYNC POINT SPDU
- .LP
- MINOR SYNC POINT ACK SPDU
- .LP
- MAJOR SYNC POINT SPDU
- .LP
- MAJOR SYNC POINT ACK SPDU
- .LP
- RESYNCHRONIZE SPDU
- .bp
- .LP
- RESYNCHRONIZE ACK SPDU
- .LP
- EXCEPTION DATA SPDU
- .LP
- ACTIVITY START SPDU
- .LP
- ACTIVITY RESUME SPDU
- .LP
- ACTIVITY INTERRUPT SPDU
- .LP
- ACTIVITY INTERRUPT ACK SPDU
- .LP
- ACTIVITY DISCARD SPDU
- .LP
- ACTIVITY DISCARD ACK SPDU
- .LP
- ACTIVITY END SPDU
- .LP
- ACTIVITY END ACK SPDU
- .sp 1P
- .LP
- 8.4.1
- \fIFirst SPDU in sequence\fR
- .sp 9p
- .RT
- .PP
- The first SPDU in the sequence shall be as specified in \(sc\ 8.3.
- .RT
- .sp 2P
- .LP
- 8.4.2
- \fISubsequent SPDUs in sequence\fR
- .sp 1P
- .RT
- .PP
- 8.4.2.1
- For all SPDUs except the REFUSE SPDU and the MINOR SYNC ACK
- SPDU, the encoding shall be as follows:
- .sp 9p
- .RT
- .LP
- 8.4.2.1.1\ \ The SI field shall have the same value as the SI field value of
- the initial SPDU of the sequence.
- .LP
- 8.4.2.1.2\ \ The parameter fields shall be as specified in Table 44/X.225.
- .LP
- 8.4.2.1.3\ \ The Enclosure Item PV field shall indicate whether or not this
- SPDU is the end of the SSDU. The encoding shall be:
- .LP
- a)
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .LP
- 8.4.2.1.4\ \ The User Data field, if present, shall contain a segment of the
- associated SSDU. The User Data field shall be present if the Enclosure
- Item has bit\ 2\ =\ 0.
- .LP
- .sp 2
- .ce
- \fBH.T. [T44.225]\fR
- .ce
- TABLE\ 44/X.225
- .ce
- \fBParameters of subsequent SPDUs when segmenting is required\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item m 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.4.2.1.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 193 65528\ octets maximum T{
- \(sc\ 7.37.1
- \(sc\ 8.4.2.1.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtable 44/X.225 [T44.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- .sp 1
- 8.4.2.2
- For the REFUSE SPDU the encoding shall be as follows:
- .LP
- 8.4.2.2.1\ \ The SI field shall have the same value as the SI field value
- of the initial SPDU of the sequence.
- .LP
- 8.4.2.2.2\ \ The parameter fields shall be as specified in Table\ 45/X.225.
- .bp
- .LP
- 8.4.2.2.3\ \ The Enclosure Item PV field shall indicate whether or not
- this SPDU is the end of the SSDU. The encoding shall be:
- .LP
- a)
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .LP
- 8.4.2.2.4\ \ The Reason Code field, if present, shall contain a segment of the
- associated SSDU. The Reason Code field shall be present if the Enclosure
- Item has bit\ 2\ =\ 0.
- .ce
- \fBH.T. [T45.225]\fR
- .ce
- TABLE\ 45/X.225
- .ce
- \fBParameters of subsequent REFUSE SPDUs when segmenting is
- .ce
- required\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item m 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.4.2.2.3
- _
- .T&
- lw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Reason code nm 50 65\|528\ octets maximum T{
- \(sc\ 7.37.1
- \(sc\ 8.4.2.2.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtable 45/X.225 [T45.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .PP
- 8.4.2.3
- For the MINOR SYNC ACK SPDU the encoding shall be as follows:
- .LP
- 8.4.2.3.1\ \ The SI field shall have the same value as the SI field value
- of the initial SPDU of the sequence.
- .LP
- 8.4.2.3.2\ \ The parameter fields shall be as specified in Table\ 46/X.225.
- .LP
- 8.4.2.3.3\ \ The Enclosure Item PV field shall indicate whether or not
- this SPDU is the end of the SSDU. The encoding shall be:
- .LP
- a)
- bit\ 1\ =\ 0\ not beginning of SSDU;
- .LP
- b)
- bit\ 2\ =\ 1\ end of SSDU;
- .LP
- bit\ 2\ =\ 0\ not end of SSDU.
- .LP
- Bits 3\(hy8 are reserved.
- .LP
- 8.4.2.3.4\ \ The User Data field, if present, shall contain a segment of the
- associated SSDU. The User Data field shall be present if the Enclosure
- Item has bit\ 2\ =\ 0.
- .ce
- \fBH.T. [T46.225]\fR
- .ce
- TABLE\ 46/X.225
- .ce
- \fBParameters of subsequent MINOR SYNC ACK SPDUs\fR
- .ce
- \fBwhen segmenting is required\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(42p) | cw(18p) | cw(18p) | cw(54p) | cw(18p) | cw(18p) | cw(30p) | cw(30p) .
- PGI m/nm Code PI m/nm Code Length Reference
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- Enclosure item m 25 1\ octet \(sc\ 7.37.1 \(sc\ 8.4.2.3.3
- _
- .T&
- cw(42p) | cw(18p) | cw(18p) | lw(54p) | cw(18p) | cw(18p) | cw(30p) | lw(30p) .
- User data nm 46 65\|528\ octets maximum T{
- \(sc\ 7.37.1
- \(sc\ 8.4.2.3.4
- m:
- mandatory.
- nm:
- not mandatory (see \(sc\ 8.2.6).
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBtable 46/X.225 [T46.225], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
-