home *** CD-ROM | disk | FTP | other *** search
/ Internet Standards / CD2.mdf / ccitt / 1992 / x / x225_2.asc < prev    next >
Text File  |  1994-01-30  |  12KB  |  168 lines
  1.                                  TABLE A-4/X.225
  2.                              Operations on variable
  3.                                                              Operations on variables
  4. Events      Condition for valid     Condition for                                      
  5.             SPDU or primitive         update of         V(A)      V(M)     V(R)       Vsc
  6.                                       variables
  7. SSYNMreq                             if Vsc true       set to   V(M) + 1 unchange    false
  8. SSYNmreq                                                V(M)                 d
  9. SACTEreq                             if Vsc false     unchange  V(M) + 1 unchange    false
  10.                                                          d                   d
  11.                                      if Vsc true      unchange  V(M) + 1 unchange  unchange
  12. MAP SPDU                                                 d                   d         d
  13. AE SPDU     sn = V(M)                if Vsc false      set to   V(M) + 1 unchange  unchange
  14.                                                         V(M)                 d         d
  15.                                      if Vsc true      unchange  V(M) + 1 unchange    true
  16.                                                          d                   d
  17. MIP SPDU    sn = V(M)                if Vsc false      set to   V(M) + 1 unchange    true
  18.                                                         V(M)                 d
  19. SSYNMrsp                                                                               
  20. SACTErsp    sn = V(M) - 1                              set to   unchange  set to   unchange
  21. MAA SPDU                                                V(M)       d       V(M)        d
  22. AEA SPDU
  23. SSYNmrsp    Vsc = true and V(M)                        set to   unchange unchange  unchange
  24.             > sn >= V(A) *                             ns + 1      d         d         d
  25. MIA SPDU    Vsc = false and V(M)                       set to   unchange unchange  unchange
  26.             > sn >= V(A) *                             sn + 1      d         d         d
  27. SRSYNreq    a: not applicable          abandon        unchange  unchange unchange  unchange
  28.             r: V(M) >= sn >=           restart           d         d         d         d
  29.             V(R)                         set          unchange  unchange unchange  unchange
  30.             s: sn <= 999 999                             d         d         d         d
  31.                                                       unchange  unchange unchange  unchange
  32.                                                          d         d         d         d
  33. RS SPDU     a: sn <= 999 999           abandon        unchange  max (sn, unchange  unchange
  34.             r: sn >= V(R)              restart           d       V(M))       d         d
  35.             s: sn <= 999 999             set          unchange  unchange unchange  unchange
  36.                                                          d         d         d         d
  37.                                                       unchange  unchange unchange  unchange
  38.                                                          d         d         d         d
  39. SRSYNrsp    a: sn = V(M)               abandon         set to    set to      0     unchange
  40.             r: sn as in RS SPDU        restart           sn        sn    unchange      d
  41.             s: sn <= 999 999             set           set to    set to      d     unchange
  42.                                                          sn        sn        0         d
  43.                                                        set to    set to            unchange
  44.                                                          sn        sn                  d
  45. RA SPDU     a: sn >= V(M)              abandon         set to    set to      0     unchange
  46.             r: sn as in RS SPDU        restart           sn        sn    unchange      d
  47.             s: sn <= 999 999             set           set to    set to      d     unchange
  48.                                                          sn        sn        0         d
  49.                                                        set to    set to            unchange
  50.                                                          sn        sn                  d
  51.                                         
  52.                                         
  53.                              TABLE A-4/X.225 (cont.)
  54.                              Operations on variable
  55.                                                              Operations on variables
  56. Events      Condition for valid     Condition for                                      
  57.             SPDU or primitive         update of         V(A)      V(M)     V(R)       Vsc
  58.                                       variables
  59. SACTRreq                                               set to    set to  set to 1  unchange
  60. AR SPDU                                                sn + 1    sn + 1                d
  61. SACTSreq                                              set to 1  set to 1 set to 1  unchange
  62. AS SPDU                                                                                d
  63. SCONrsp                               sn present       set to    set to      0       false
  64. AC SPDU                                                  sn        sn
  65. sn:  synchronization point serial number quoted in SS-user request or SPDU
  66. >=:  greater than or equal to
  67. <=:  less than or equal to
  68. *:    synchronization  point  serial number not equal  to  V(M)  -  1  if  major
  69. synchronization or activity end outstandingTABLE A-5/X.225
  70.                                         
  71.                                         
  72.                                  TABLE A-7/X.225
  73.                       Connection establishment state table
  74.   STATE   STA01    STA01A   STA01B   STA01C   STA01D    STA02A   STA02B     STA08   STA15D    STA16
  75. EVENT    idle no  await AA   await   idle TC   await     await  await OA    await    await    await
  76.            TC               TCONcnf    con      CDO       AC               SCONrsp   after   TDISind
  77.                                                                                      PR-AB
  78. AC       / /       STA01A   / /      TDISreq            SCONcnf                     STA15D    STA16
  79.                                       STA01              + [5]
  80.                                                          [11]
  81.                                                         STA713
  82.                                                           [6]
  83. CDO      / /                / /      TDISreq   öp202                                STA15D      
  84.                                       STA01    [50]
  85.                                               STA01D
  86.                                                p202
  87.                                               SCONind
  88.                                                STA08
  89. CN       / /       TDISreq  / /      öp01 &                                                  TDISreq
  90.                      [3]             öp76 &                                                    [3]
  91.                     STA01            p204 OA                                                  STA01
  92.                                       [50]
  93.                                      STA01D
  94.                                      öp01 &
  95.                                      öp76 &
  96.                                       öp204
  97.                                      SCONind
  98.                                       STA08
  99.                                      öp01 &
  100.                                       p76 &
  101.                                      öp02 RF-
  102.                                      nr [4]
  103.                                       STA16
  104.                                      öp01 &
  105.                                       p76 &
  106.                                      p02 RF-
  107.                                         r
  108.                                      STA01C
  109.                                        p01
  110.                                      TDISreq
  111.                                       STA01
  112. OA       / /                / /      TDISreq                    CDO [51]            STA15D      
  113.                                       STA01                      STA02A
  114. RF-nr    / /       STA01A   / /      TDISreq            SCONcnf-SCONcnf-                      STA16
  115.                                       STA01             TDISreq  TDISreq
  116.                                                          STA01    STA01
  117.                                         
  118.                                         
  119.                              TABLE A-7/X.225 (cont.)
  120.   STATE   STA01    STA01A   STA01B   STA01C   STA01D    STA02A   STA02B     STA08   STA15D    STA16
  121. EVENT    idle no  await AA   await   idle TC   await     await  await OA    await    await    await
  122.            TC               TCONcnf    con      CDO       AC               SCONrsp   after   TDISind
  123.                                                                                      PR-AB
  124.                                                                                               STA16
  125. RF-r     / /       STA01A   / /      TDISreq             öp02     öp02
  126.                                       STA01             SCONcnf-SCONcnf-
  127.                                                         TDISreq  TDISreq
  128.                                                          STA01    STA01
  129.                                                           p02      p02
  130.                                                         SCONcnf-SCONcnf-
  131.                                                         STA01C   STA01C
  132.                                                                     
  133.                                                                                                 
  134. SCONreq  TCONreq                      p01 &                     
  135.            [2]                       p204 CN                    
  136.          STA01B                      STA02B
  137.                                       p01 &
  138.                                       öp204
  139.                                        CN
  140.                                      STA02A
  141.                                         
  142.                                                                                                 
  143. SCONrsp                                                                    AC [5]   STA15D
  144. +                                                                           [11]       
  145.                                                                            STA713
  146.                                                                               
  147.                                                                                                 
  148. SCONrsp-                                                                   öp02 RF- STA15D
  149.                                                                            nr [4]      
  150.                                                                             STA16
  151.                                                                            p02 RF-
  152.                                                                               r
  153.                                                                            STA01C
  154.                                                                               
  155.                                                                                             
  156. TCONcnf  / /      / /       p204 CN  / /     / /        / /     / /        / /      / /     / /
  157.                             STA02B                                                          
  158.                              öp204
  159.                               CN
  160.                             STA02A
  161.                                
  162.                                                                                             
  163. TCONind  TCONrsp  / /       / /      / /     / /        / /     / /        / /      / /     / /
  164.            [1]                                                                              
  165.          STA01C
  166.             
  167.                                         
  168.