SS7 Network Management Messages

SIF: MSU-SNMM Signalling information field:


                                          message flow ----->  |
    +- - - - - - - - - - - - - - - - - +---+---+---+-----+-----+- - -
    | Management Information Parameters|H1 |H0 |SLC| OPC | DPC |  SIO
    +- - - - - - - - - - - - - - - - - +-4-+-4-+-4-+--14-+--14-+- - -

                                               |-routing label-|
                                               |-----label-----|

     DPC - destination point code (cod: binary)
     OPC - originating point code (cod: binary)
     SLC - signalling link code
     H0  - heading code 0
     H1  - heading code 1


    Network Management Message types:   15/Q.704 (07.96)

 Id. in the test-set  H1:   H0:
 (SNMM exceptions buttons
 of the report filter)
                    ----  0000      Spare
                    ----  0001  CHM Changeover and changeback messages
 ChangeoverOrder    0001  0001  COO  Changeover-order signal
 ChangeoverAck      0010  0001  COA  Changeover-acknowledgement signal
 ChangebackDecl     0101  0001  CBD  Changeback-declaration signal
 ChangebackAck      0110  0001  CBA  Changeback-acknowledgement signal
                    ----  0010  ECM Emergency-changeover message
 EmergChoverOrder   0001  0010  ECO  Emergency changeover-order signal
 EmergChoverAck     0010  0010  ECA  Emergency changeover-acknowledgement signal
                    ----  0011  FCM Signalling-traffic-flow control messages
SRoutSetCongTest    0001  0011  RCT  Signalling-route-set-congestion-test signal
TransfControlled    0010  0011  TFC  Transfer-controlled signal
                    ----  0100  TFM Transfer-prohibited-allowed-restricted messages
TransfProhibited    0001  0100  TFP  Transfer-prohibited signal
TransfRestricted    0011  0100  TFR  Transfer-restricted signal (national option)
TransferAllowed     0101  0100  TFA  Transfer-allowed signal
                    ----  0101  RSM Signalling-route-set-test messages
SRTestProhibDest    0001  0101  RST  Signalling-route-set-test signal for prohibited destination
SRTestRestrDest     0010  0101  RSR  Signalling-route-set-test signal for restricted destination (national option)
                    ----  0110  MIM Management inhibit messages
LinkInhibit         0001  0110  LIN  Link inhibit signal
LinkUninhibit       0010  0110  LUN  Link uninhibit signal
LinkInhibitAck      0011  0110  LIA  Link inhibit acknowledgement signal
LinkUninhibitAck    0100  0110  LUA  Link uninhibit acknowledgement signal
LinkInhibitDeni     0101  0110  LID  Link inhibit denied signal
Link-force-uninh    0110  0110  LFU  Link forced uninhibit signal
LinkLocInhibTest    0111  0110  LLT  Link local inhibit test signal
LinkRenInhibTest    1000  0110  LRT  Link remote inhibit test signal
                    ----  0111  TRM Traffic restart allowed message
TrafficRestaAllo    0001  0111  TRA  Traffic-restart-allowed signal
                    ----  1000  DLM Signalling-data-link-connection messages
 SDatLinConnOrder   0001  1000  DLC  Signalling-data-link-connection-order signal
 ConnSuccessful     0010  1000  CSS  Connection-successful signal
 ConnNotSuccess     0011  1000  CNS  Connection-not-successful signal
 ConnNotPossible    0100  1000  CNP  Connection-not-possible signal
                    ----  1001            Spare
                    ----  1010  UFC User part flow control messages
 UserPartUnavail    0001  1010  UPU  User part unavailable signal
                    ------1011...1111     Spare