SIGnaling TRANsport (SIGTRAN)

SIGTRAN (SIGnaling TRANsport) is the name of the working group that developed the specifications to adapt SS7 & ISDN protocols overIP and Stream Control Transmission Protocol (SCTP).

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M3UA

Management messages

          0        Error (ERR)

          1        Notify (NTFY)

       2 to 127    Reserved by the IETF

     128 to 255    Reserved for IETF-Defined MGMT extensions

     Transfer Messages (see Section 3.3)

          0        Reserved

          1        Payload Data (DATA)

       2 to 127    Reserved by the IETF

     128 to 255    Reserved for IETF-Defined Transferextensions

     SS7 Signalling Network Management (SSNM)Messages (see Section

     3.4)

          0        Reserved

          1        Destination Unavailable (DUNA)

          2        Destination Available (DAVA)

          3        Destination State Audit (DAUD)

          4        Signalling Congestion (SCON)

          5        Destination User Part Unavailable(DUPU)

          6        Destination Restricted (DRST)

       7 to 127    Reserved by the IETF

     128 to 255    Reserved for IETF-Defined SSNM extensions

     ASP State Maintenance (ASPSM) Messages(see Section 3.5)

          0        Reserved

          1        ASP Up (ASPUP)

          2        ASP Down (ASPDN)

          3        Heartbeat (BEAT)

          4        ASP Up Acknowledgement (ASPUP ACK)

          5        ASP Down Acknowledgement (ASPDN ACK)

          6        Heartbeat Acknowledgement (BEAT ACK)

       7 to 127    Reserved by the IETF

     128 to 255    Reserved for IETF-Defined ASPSM extensions

     ASP Traffic Maintenance (ASPTM) Messages(see Section 3.7)

          0        Reserved

          1        ASP Active (ASPAC)

          2        ASP Inactive (ASPIA)

          3        ASP Active Acknowledgement (ASPAC ACK)

          4        ASP Inactive Acknowledgement (ASPIAACK)

       5 to 127    Reserved by the IETF

     128 to 255    Reserved for IETF-Defined ASPTM extensions

     Routing Key Management (RKM) Messages(see Section 3.6)

          0        Reserved

          1        Registration Request (REG REQ)

          2        Registration Response (REG RSP)

          3        Deregistration Request (DEREG REQ)

          4        Deregistration Response (DEREG RSP)

       5 to 127    Reserved by the IETF

     128to 255    Reserved for IETF-Defined RKMextensions

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