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- Network Working Group B. Stewart
- Request for Comments: 1659 Xyplex, Inc.
- Obsoletes: 1317 July 1994
- Category: Standards Track
-
-
- Definitions of Managed Objects for RS-232-like Hardware Devices
- using SMIv2
-
- Status of this Memo
-
- This document specifies an Internet standards track protocol for the
- Internet community, and requests discussion and suggestions for
- improvements. Please refer to the current edition of the "Internet
- Official Protocol Standards" (STD 1) for the standardization state
- and status of this protocol. Distribution of this memo is unlimited.
-
- Table of Contents
-
- 1. Introduction ................................................ 1
- 2. The SNMPv2 Network Management Framework ..................... 1
- 2.1 Object Definitions ......................................... 2
- 3. Overview .................................................... 2
- 3.1 Relationship to Interface MIB .............................. 3
- 4. Definitions ................................................. 3
- 5. Acknowledgements ............................................ 20
- 6. References .................................................. 20
- 7. Security Considerations ..................................... 21
- 8. Author's Address ............................................ 21
-
- 1. Introduction
-
- This memo defines an extension to the Management Information Base
- (MIB) for use with network management protocols in the Internet
- community. In particular, it defines objects for the management of
- RS-232-like devices.
-
- 2. The SNMPv2 Network Management Framework
-
- The SNMPv2 Network Management Framework consists of four major
- components. They are:
-
- o RFC 1442 [1] which defines the SMI, the mechanisms used for
- describing and naming objects for the purpose of management.
-
- o STD 17, RFC 1213 [2] defines MIB-II, the core set of managed
- objects for the Internet suite of protocols.
-
-
-
-
- Stewart [Page 1]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- o RFC 1445 [3] which defines the administrative and other
- architectural aspects of the framework.
-
- o RFC 1448 [4] which defines the protocol used for network
- access to managed objects.
-
- The Framework permits new objects to be defined for the purpose of
- experimentation and evaluation.
-
- 2.1. Object Definitions
-
- Managed objects are accessed via a virtual information store, termed
- the Management Information Base or MIB. Objects in the MIB are
- defined using the subset of Abstract Syntax Notation One (ASN.1)
- defined in the SMI. In particular, each object object type is named
- by an OBJECT IDENTIFIER, an administratively assigned name. The
- object type together with an object instance serves to uniquely
- identify a specific instantiation of the object. For human
- convenience, we often use a textual string, termed the descriptor, to
- refer to the object type.
-
- 3. Overview
-
- The RS-232-like Hardware Device MIB applies to interface ports that
- might logically support the Interface MIB, a Transmission MIB, or the
- Character MIB. The most common example is an RS-232 port with modem
- signals.
-
- The RS-232-like Hardware Device MIB is mandatory for all systems that
- have such a hardware port supporting services managed through some
- other MIB.
-
- The MIB includes multiple similar types of hardware, and as a result
- contains objects not applicable to all of those types. The
- compliance definitions herein thus have a general group for all
- implementations, and separate groups for the different types of
- ports, such as asynchronous and synchronous.
-
- The RS-232-like Hardware Port MIB includes RS-232, RS-422, RS-423,
- V.35, and other asynchronous or synchronous, serial physical links
- with a similar set of control signals.
-
- The MIB contains objects that relate to physical layer connections.
- Such connections may provide interesting hardware signals (other than
- for basic data transfer), such as RNG and DCD. Hardware ports also
- have such attributes as speed and bits per character.
-
-
-
-
-
- Stewart [Page 2]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- The MIB comprises one base object and four tables, detailed in the
- following sections. The tables contain objects for all ports,
- asynchronous ports, and input and output control signals.
-
- 3.1. Relationship to Interface MIB
-
- The RS-232-like MIB is one of many MIBs designed for layered use as
- described in the Interface MIB [5]. In most implementations where it
- is present, it will be in the lowest interface sublayer, that is, the
- RS-232-like MIB represents the physical layer, providing service to
- higher layers such as the Character MIB [6] or PPP MIB [7].
-
- The Interface MIB's ifTestTable and ifRcvAddressTable are not
- relevant to the RS-232-like MIB.
-
- The RS-232-like MIB is relevant for ifType values rs232(33), v35(45),
- and perhaps others.
-
- The RS-232-like MIB requires the conformance groups ifGeneralGroup,
- and ifFixedLengthGroup.
-
- The value of ifSpeed is the same as rs232PortOutSpeed.
-
- Usefulness of error counters in this MIB depends on the octet
- counters in ifFixedLengthGroup.
-
- 4. Definitions
-
- RS-232-MIB DEFINITIONS ::= BEGIN
-
- IMPORTS
- MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
- Counter32, Integer32
- FROM SNMPv2-SMI
- InterfaceIndex
- FROM IF-MIB
- transmission
- FROM RFC1213-MIB
- MODULE-COMPLIANCE, OBJECT-GROUP
- FROM SNMPv2-CONF;
-
-
- rs232 MODULE-IDENTITY
- LAST-UPDATED "9405261700Z"
- ORGANIZATION "IETF Character MIB Working Group"
- CONTACT-INFO
- " Bob Stewart
- Postal: Xyplex, Inc.
-
-
-
- Stewart [Page 3]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- 295 Foster Street
- Littleton, MA 01460
-
- Tel: 508-952-4816
- Fax: 508-952-4887
- E-mail: rlstewart@eng.xyplex.com"
- DESCRIPTION
- "The MIB module for RS-232-like hardware devices."
- ::= { transmission 33 }
-
-
- -- Generic RS-232-like information
-
- rs232Number OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The number of ports (regardless of their current
- state) in the RS-232-like general port table."
- ::= { rs232 1 }
-
-
- -- RS-232-like General Port Table
-
- rs232PortTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Rs232PortEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "A list of port entries. The number of entries is
- given by the value of rs232Number."
- ::= { rs232 2 }
-
- rs232PortEntry OBJECT-TYPE
- SYNTAX Rs232PortEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Status and parameter values for a port."
- INDEX { rs232PortIndex }
- ::= { rs232PortTable 1 }
-
- Rs232PortEntry ::=
- SEQUENCE {
- rs232PortIndex
- InterfaceIndex,
- rs232PortType
-
-
-
- Stewart [Page 4]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- INTEGER,
- rs232PortInSigNumber
- Integer32,
- rs232PortOutSigNumber
- Integer32,
- rs232PortInSpeed
- Integer32,
- rs232PortOutSpeed
- Integer32,
- rs232PortInFlowType
- INTEGER,
- rs232PortOutFlowType
- INTEGER
- }
-
- rs232PortIndex OBJECT-TYPE
- SYNTAX InterfaceIndex
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The value of ifIndex for the port. By convention
- and if possible, hardware port numbers map directly
- to external connectors. The value for each port must
- remain constant at least from one re-initialization
- of the network management agent to the next."
- ::= { rs232PortEntry 1 }
-
- rs232PortType OBJECT-TYPE
- SYNTAX INTEGER { other(1), rs232(2), rs422(3),
- rs423(4), v35(5), x21(6) }
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The port's hardware type."
- ::= { rs232PortEntry 2 }
-
- rs232PortInSigNumber OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The number of input signals for the port in the
- input signal table (rs232PortInSigTable). The table
- contains entries only for those signals the software
- can detect and that are useful to observe."
- ::= { rs232PortEntry 3 }
-
-
-
-
-
- Stewart [Page 5]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- rs232PortOutSigNumber OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The number of output signals for the port in the
- output signal table (rs232PortOutSigTable). The
- table contains entries only for those signals the
- software can assert and that are useful to observe."
- ::= { rs232PortEntry 4 }
-
- rs232PortInSpeed OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's input speed in bits per second. Note that
- non-standard values, such as 9612, are probably not allowed
- on most implementations."
- ::= { rs232PortEntry 5 }
-
- rs232PortOutSpeed OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's output speed in bits per second. Note that
- non-standard values, such as 9612, are probably not allowed
- on most implementations."
- ::= { rs232PortEntry 6 }
-
- rs232PortInFlowType OBJECT-TYPE
- SYNTAX INTEGER { none(1), ctsRts(2), dsrDtr(3) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's type of input flow control. 'none'
- indicates no flow control at this level.
- 'ctsRts' and 'dsrDtr' indicate use of the indicated
- hardware signals."
- ::= { rs232PortEntry 7 }
-
- rs232PortOutFlowType OBJECT-TYPE
- SYNTAX INTEGER { none(1), ctsRts(2), dsrDtr(3) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's type of output flow control. 'none'
-
-
-
- Stewart [Page 6]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- indicates no flow control at this level.
- 'ctsRts' and 'dsrDtr' indicate use of the indicated
- hardware signals."
- ::= { rs232PortEntry 8 }
-
-
- -- RS-232-like Asynchronous Port Table
-
- rs232AsyncPortTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Rs232AsyncPortEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "A list of asynchronous port entries. Entries need
- not exist for synchronous ports."
- ::= { rs232 3 }
-
- rs232AsyncPortEntry OBJECT-TYPE
- SYNTAX Rs232AsyncPortEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Status and parameter values for an asynchronous
- port."
- INDEX { rs232AsyncPortIndex }
- ::= { rs232AsyncPortTable 1 }
-
- Rs232AsyncPortEntry ::=
- SEQUENCE {
- rs232AsyncPortIndex
- InterfaceIndex,
- rs232AsyncPortBits
- INTEGER,
- rs232AsyncPortStopBits
- INTEGER,
- rs232AsyncPortParity
- INTEGER,
- rs232AsyncPortAutobaud
- INTEGER,
- rs232AsyncPortParityErrs
- Counter32,
- rs232AsyncPortFramingErrs
- Counter32,
- rs232AsyncPortOverrunErrs
- Counter32
-
- }
-
-
-
-
- Stewart [Page 7]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- rs232AsyncPortIndex OBJECT-TYPE
- SYNTAX InterfaceIndex
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "A unique value for each port. Its value is the
- same as rs232PortIndex for the port."
- ::= { rs232AsyncPortEntry 1 }
-
- rs232AsyncPortBits OBJECT-TYPE
- SYNTAX INTEGER (5..8)
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's number of bits in a character."
- ::= { rs232AsyncPortEntry 2 }
-
- rs232AsyncPortStopBits OBJECT-TYPE
- SYNTAX INTEGER { one(1), two(2),
- oneAndHalf(3), dynamic(4) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's number of stop bits."
- ::= { rs232AsyncPortEntry 3 }
-
- rs232AsyncPortParity OBJECT-TYPE
- SYNTAX INTEGER { none(1), odd(2), even(3),
- mark(4), space(5) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The port's sense of a character parity bit."
- ::= { rs232AsyncPortEntry 4 }
-
- rs232AsyncPortAutobaud OBJECT-TYPE
- SYNTAX INTEGER { enabled(1), disabled(2) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "A control for the port's ability to automatically
- sense input speed.
-
- When rs232PortAutoBaud is 'enabled', a port may
- autobaud to values different from the set values for
- speed, parity, and character size. As a result a
- network management system may temporarily observe
- values different from what was previously set."
-
-
-
- Stewart [Page 8]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- ::= { rs232AsyncPortEntry 5 }
-
- rs232AsyncPortParityErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of characters with a parity error,
- input from the port since system re-initialization
- and while the port state was 'up' or 'test'."
- ::= { rs232AsyncPortEntry 6 }
-
- rs232AsyncPortFramingErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of characters with a framing error,
- input from the port since system re-initialization
- and while the port state was 'up' or 'test'."
- ::= { rs232AsyncPortEntry 7 }
-
- rs232AsyncPortOverrunErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of characters with an overrun error,
- input from the port since system re-initialization
- and while the port state was 'up' or 'test'."
- ::= { rs232AsyncPortEntry 8 }
-
-
- -- RS-232-like Synchronous Port Table
-
- rs232SyncPortTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Rs232SyncPortEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "A list of asynchronous port entries. Entries need
- not exist for synchronous ports."
- ::= { rs232 4 }
-
- rs232SyncPortEntry OBJECT-TYPE
- SYNTAX Rs232SyncPortEntry
- MAX-ACCESS not-accessible
- STATUS current
-
-
-
- Stewart [Page 9]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- DESCRIPTION
- "Status and parameter values for a synchronous
- port."
- INDEX { rs232SyncPortIndex }
- ::= { rs232SyncPortTable 1 }
-
- Rs232SyncPortEntry ::=
- SEQUENCE {
- rs232SyncPortIndex
- InterfaceIndex,
- rs232SyncPortClockSource
- INTEGER,
- rs232SyncPortFrameCheckErrs
- Counter32,
- rs232SyncPortTransmitUnderrunErrs
- Counter32,
- rs232SyncPortReceiveOverrunErrs
- Counter32,
- rs232SyncPortInterruptedFrames
- Counter32,
- rs232SyncPortAbortedFrames
- Counter32,
- rs232SyncPortRole
- INTEGER,
- rs232SyncPortEncoding
- INTEGER,
- rs232SyncPortRTSControl
- INTEGER,
- rs232SyncPortRTSCTSDelay
- Integer32,
- rs232SyncPortMode
- INTEGER,
- rs232SyncPortIdlePattern
- INTEGER,
- rs232SyncPortMinFlags
- Integer32
- }
-
- rs232SyncPortIndex OBJECT-TYPE
- SYNTAX InterfaceIndex
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "A unique value for each port. Its value is the
- same as rs232PortIndex for the port."
- ::= { rs232SyncPortEntry 1 }
-
-
-
-
-
- Stewart [Page 10]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- rs232SyncPortClockSource OBJECT-TYPE
- SYNTAX INTEGER { internal(1), external(2), split(3) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "Source of the port's bit rate clock. 'split' means
- the tranmit clock is internal and the receive clock
- is external."
- ::= { rs232SyncPortEntry 2 }
-
- rs232SyncPortFrameCheckErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of frames with an invalid frame check
- sequence, input from the port since system
- re-initialization and while the port state was 'up'
- or 'test'."
- ::= { rs232SyncPortEntry 3 }
-
- rs232SyncPortTransmitUnderrunErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of frames that failed to be
- transmitted on the port since system
- re-initialization and while the port state was 'up'
- or 'test' because data was not available to the
- transmitter in time."
- ::= { rs232SyncPortEntry 4 }
-
- rs232SyncPortReceiveOverrunErrs OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Total number of frames that failed to be received
- on the port since system re-initialization and while
- the port state was 'up' or 'test' because the
- receiver did not accept the data in time."
- ::= { rs232SyncPortEntry 5 }
-
- rs232SyncPortInterruptedFrames OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
-
-
-
- Stewart [Page 11]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- DESCRIPTION
- "Total number of frames that failed to be received
- or transmitted on the port due to loss of modem
- signals since system re-initialization and while the
- port state was 'up' or 'test'."
- ::= { rs232SyncPortEntry 6 }
-
- rs232SyncPortAbortedFrames OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Number of frames aborted on the port due to
- receiving an abort sequence since system
- re-initialization and while the port state was 'up'
- or 'test'."
- ::= { rs232SyncPortEntry 7 }
-
- rs232SyncPortRole OBJECT-TYPE
- SYNTAX INTEGER { dte(1), dce(2) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The role the device is playing that is using this port.
- dte means the device is performing the role of
- data terminal equipment
- dce means the device is performing the role of
- data circuit-terminating equipment."
- DEFVAL { dce }
- ::= { rs232SyncPortEntry 8 }
-
- rs232SyncPortEncoding OBJECT-TYPE
- SYNTAX INTEGER { nrz(1), nrzi(2) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The bit stream encoding technique that is in effect
- for this port.
- nrz for Non-Return to Zero encoding
- nrzi for Non-Return to Zero Inverted encoding."
- DEFVAL { nrz }
- ::= { rs232SyncPortEntry 9 }
-
- rs232SyncPortRTSControl OBJECT-TYPE
- SYNTAX INTEGER { controlled(1), constant(2) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
-
-
-
- Stewart [Page 12]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- "The method used to control the Request To Send (RTS)
- signal.
-
- controlled when the DTE is asserts RTS each time
- data needs to be transmitted and drops
- RTS at some point after data
- transmission begins.
-
- If rs232SyncPortRole is 'dte', the
- RTS is an output signal. The device
- will issue a RTS and wait for a CTS
- from the DCE before starting to
- transmit.
-
- If rs232SyncPortRole is 'dce', the
- RTS is an input signal. The device
- will issue a CTS only after having
- received RTS and waiting the
- rs232SyncPortRTSCTSDelay interval.
-
- constant when the DTE constantly asserts RTS."
- DEFVAL { constant }
- ::= { rs232SyncPortEntry 10 }
-
- rs232SyncPortRTSCTSDelay OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The interval (in milliseconds) that the DCE must wait
- after it sees RTS asserted before asserting CTS. This
- object exists in support of older synchronous devices
- that cannot recognize CTS within a certain interval
- after it asserts RTS."
- DEFVAL { 0 }
- ::= { rs232SyncPortEntry 11 }
-
- rs232SyncPortMode OBJECT-TYPE
- SYNTAX INTEGER { fdx(1), hdx(2), simplex-receive(3),
- simplex-send(4) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The mode of operation of the port with respect to the
- direction and simultaneity of data transfer.
-
-
-
-
-
-
- Stewart [Page 13]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- fdx when frames on the data link can be
- transmitted and received at the same
- time
-
- hdx when frames can either be received
- from the data link or transmitted
- onto the data link but not at the
- same time.
-
- simplex-receive when frames can only be received on
- this data link.
-
- simplex-send when frames can only be sent on this
- data link."
- DEFVAL { fdx }
- ::= { rs232SyncPortEntry 12 }
-
- rs232SyncPortIdlePattern OBJECT-TYPE
- SYNTAX INTEGER { mark(1), space(2) }
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The bit pattern used to indicate an idle line."
- DEFVAL { space }
- ::= { rs232SyncPortEntry 13 }
-
- rs232SyncPortMinFlags OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The minimum number of flag patterns this port needs in
- order to recognize the end of one frame and the start
- of the next. Plausible values are 1 and 2."
- DEFVAL { 2 }
- ::= { rs232SyncPortEntry 14 }
-
-
- -- Input Signal Table
-
- rs232InSigTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Rs232InSigEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "A list of port input control signal entries
- implemented and visible to the software on the port,
- and useful to monitor."
-
-
-
- Stewart [Page 14]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- ::= { rs232 5 }
-
- rs232InSigEntry OBJECT-TYPE
- SYNTAX Rs232InSigEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Input control signal status for a hardware port."
- INDEX { rs232InSigPortIndex, rs232InSigName }
- ::= { rs232InSigTable 1 }
-
- Rs232InSigEntry ::=
- SEQUENCE {
- rs232InSigPortIndex
- InterfaceIndex,
- rs232InSigName
- INTEGER,
- rs232InSigState
- INTEGER,
- rs232InSigChanges
- Counter32
- }
-
- rs232InSigPortIndex OBJECT-TYPE
- SYNTAX InterfaceIndex
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The value of rs232PortIndex for the port to which
- this entry belongs."
- ::= { rs232InSigEntry 1 }
-
- rs232InSigName OBJECT-TYPE
- SYNTAX INTEGER { rts(1), cts(2), dsr(3), dtr(4), ri(5),
- dcd(6), sq(7), srs(8), srts(9),
- scts(10), sdcd(11) }
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Identification of a hardware signal, as follows:
-
- rts Request to Send
- cts Clear to Send
- dsr Data Set Ready
- dtr Data Terminal Ready
- ri Ring Indicator
- dcd Received Line Signal Detector
- sq Signal Quality Detector
-
-
-
- Stewart [Page 15]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- srs Data Signaling Rate Selector
- srts Secondary Request to Send
- scts Secondary Clear to Send
- sdcd Secondary Received Line Signal Detector
- "
- REFERENCE
- "EIA Standard RS-232-C, August 1969."
- ::= { rs232InSigEntry 2 }
-
- rs232InSigState OBJECT-TYPE
- SYNTAX INTEGER { none(1), on(2), off(3) }
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The current signal state."
- ::= { rs232InSigEntry 3 }
-
- rs232InSigChanges OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The number of times the signal has changed from
- 'on' to 'off' or from 'off' to 'on'."
- ::= { rs232InSigEntry 4 }
-
-
- -- Output Signal Table
-
- rs232OutSigTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Rs232OutSigEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "A list of port output control signal entries
- implemented and visible to the software on the port,
- and useful to monitor."
- ::= { rs232 6 }
-
- rs232OutSigEntry OBJECT-TYPE
- SYNTAX Rs232OutSigEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Output control signal status for a hardware port."
- INDEX { rs232OutSigPortIndex, rs232OutSigName }
- ::= { rs232OutSigTable 1 }
-
-
-
-
- Stewart [Page 16]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- Rs232OutSigEntry ::=
- SEQUENCE {
- rs232OutSigPortIndex
- InterfaceIndex,
- rs232OutSigName
- INTEGER,
- rs232OutSigState
- INTEGER,
- rs232OutSigChanges
- Counter32
- }
-
- rs232OutSigPortIndex OBJECT-TYPE
- SYNTAX InterfaceIndex
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The value of rs232PortIndex for the port to which
- this entry belongs."
- ::= { rs232OutSigEntry 1 }
-
- rs232OutSigName OBJECT-TYPE
- SYNTAX INTEGER { rts(1), cts(2), dsr(3), dtr(4), ri(5),
- dcd(6), sq(7), srs(8), srts(9),
- scts(10), sdcd(11) }
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Identification of a hardware signal, as follows:
-
- rts Request to Send
- cts Clear to Send
- dsr Data Set Ready
- dtr Data Terminal Ready
- ri Ring Indicator
- dcd Received Line Signal Detector
- sq Signal Quality Detector
- srs Data Signaling Rate Selector
- srts Secondary Request to Send
- scts Secondary Clear to Send
- sdcd Secondary Received Line Signal Detector
- "
- REFERENCE
- "EIA Standard RS-232-C, August 1969."
- ::= { rs232OutSigEntry 2 }
-
- rs232OutSigState OBJECT-TYPE
- SYNTAX INTEGER { none(1), on(2), off(3) }
-
-
-
- Stewart [Page 17]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The current signal state."
- ::= { rs232OutSigEntry 3 }
-
- rs232OutSigChanges OBJECT-TYPE
- SYNTAX Counter32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The number of times the signal has changed from
- 'on' to 'off' or from 'off' to 'on'."
- ::= { rs232OutSigEntry 4 }
-
-
- -- conformance information
-
- rs232Conformance OBJECT IDENTIFIER ::= { rs232 7 }
-
- rs232Groups OBJECT IDENTIFIER ::= { rs232Conformance 1 }
- rs232Compliances OBJECT IDENTIFIER ::= { rs232Conformance 2 }
-
-
- -- compliance statements
-
- rs232Compliance MODULE-COMPLIANCE
- STATUS current
- DESCRIPTION
- "The compliance statement for SNMPv2 entities
- which have RS-232-like hardware interfaces."
-
- MODULE -- this module
- MANDATORY-GROUPS { rs232Group }
-
- GROUP rs232AsyncGroup
- DESCRIPTION
- "The Asynch group is mandatory only for those
- SNMPv2 entities which have asynchronous
- interfaces Rs-232-like."
-
- GROUP rs232SyncGroup
- DESCRIPTION
- "The Synch group is mandatory only for those
- SNMPv2 entities which have synchronous
- interfaces Rs-232-like."
- ::= { rs232Compliances 1 }
-
-
-
-
- Stewart [Page 18]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- -- units of conformance
-
- rs232Group OBJECT-GROUP
- OBJECTS { rs232Number, rs232PortIndex, rs232PortType,
- rs232PortInSigNumber, rs232PortOutSigNumber,
- rs232PortInSpeed, rs232PortOutSpeed,
- rs232PortInFlowType, rs232PortOutFlowType,
- rs232InSigPortIndex, rs232InSigName,
- rs232InSigState, rs232InSigChanges,
- rs232OutSigPortIndex, rs232OutSigName,
- rs232OutSigState, rs232OutSigChanges }
- STATUS current
- DESCRIPTION
- "A collection of objects providing information
- applicable to all RS-232-like interfaces."
- ::= { rs232Groups 1 }
-
- rs232AsyncGroup OBJECT-GROUP
- OBJECTS { rs232AsyncPortIndex, rs232AsyncPortBits,
- rs232AsyncPortStopBits, rs232AsyncPortParity,
- rs232AsyncPortAutobaud, rs232AsyncPortParityErrs,
- rs232AsyncPortFramingErrs, rs232AsyncPortOverrunErrs }
- STATUS current
- DESCRIPTION
- "A collection of objects providing information
- applicable to asynchronous RS-232-like interfaces."
- ::= { rs232Groups 2 }
-
- rs232SyncGroup OBJECT-GROUP
- OBJECTS { rs232SyncPortIndex, rs232SyncPortClockSource,
- rs232SyncPortFrameCheckErrs,
- rs232SyncPortTransmitUnderrunErrs,
- rs232SyncPortReceiveOverrunErrs,
- rs232SyncPortInterruptedFrames,
- rs232SyncPortAbortedFrames }
- STATUS current
- DESCRIPTION
- "A collection of objects providing information
- applicable to synchronous RS-232-like interfaces."
- ::= { rs232Groups 3 }
-
- rs232SyncSDLCGroup OBJECT-GROUP
- OBJECTS { rs232SyncPortRole,
- rs232SyncPortEncoding,
- rs232SyncPortRTSControl,
- rs232SyncPortRTSCTSDelay,
- rs232SyncPortMode,
- rs232SyncPortIdlePattern,
-
-
-
- Stewart [Page 19]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- rs232SyncPortMinFlags }
- STATUS current
- DESCRIPTION
- "A collection of objects providing information
- applicable to synchronous RS-232-like interfaces
- running SDLC."
- ::= { rs232Groups 4 }
-
- END
-
- 5. Acknowledgements
-
- This memo was produced by the IETF Character MIB Working Group.
-
- 6. References
-
- [1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure
- of Management Information for version 2 of the Simple Network
- Management Protocol (SNMPv2)", RFC 1442, SNMP Research,Inc.,
- Hughes LAN Systems, Dover Beach Consulting, Inc., Carnegie Mellon
- University, April 1993.
-
- [2] McCloghrie, K., and M. Rose, Editors, "Management Information
- Base for Network Management of TCP/IP-based internets: MIB-II",
- STD 17, RFC 1213, Hughes LAN Systems, Performance Systems
- International, March 1991.
-
- [3] Galvin, J., and K. McCloghrie, "Administrative Model for version
- 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1445,
- Trusted Information Systems, Hughes LAN Systems, April 1993.
-
- [4] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol
- Operations for version 2 of the Simple Network Management
- Protocol (SNMPv2)", RFC 1448, SNMP Research,Inc., Hughes LAN
- Systems, Dover Beach Consulting, Inc., Carnegie Mellon
- University, April 1993.
-
- [5] McCloghrie, K., and F. Kastenholz, "Evolution of the Interfaces
- Group of MIB-II", RFC 1573, Hughes LAN Systems, FTP Software,
- January 1994.
-
- [6] Stewart, B., "Definitions of Managed Objects for Character Stream
- Devices using SMIv2", RFC 1658, Xyplex, Inc., July 1994.
-
- [7] Kastenholz, F., "The Definitions of Managed Objects for the Link
- Control Protocol of the Point-to-Point Protocol", RFC 1471, FTP
- Software, Inc., June 1993.
-
-
-
-
- Stewart [Page 20]
-
- RFC 1659 RS-232-like MIB July 1994
-
-
- 7. Security Considerations
-
- Security issues are not discussed in this memo.
-
- 8. Author's Address
-
- Bob Stewart
- Xyplex, Inc.
- 295 Foster Street
- Littleton, MA 01460
-
- Phone: 508-952-4816
- Fax: 508-952-4887
- EMail: rlstewart@eng.xyplex.com
-
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