The MIB for managing Signalling Points and its associated messages transported over Signalling System No. 7 (SS7) Network via Cisco IP Transfer Point. The Cisco IP Transfer Point (ITP) is a hardware and software solution that transports SS7 traffic using IP. Each ITP node provides function similar to SS7 Signalling point. The relevant ITU documents describing this technology is the ITU Q series, including ITU Q.700: Introduction to CCITT Signalling System No. 7 and ITU Q.701 Functional description of the message transfer part (MTP) of Signalling System No. 7. This MIB models the SP as follows: The SP is associated with one or more point codes. Each pointcode is associated with: an SS7 variant, timers, and linksets. Linksets contain: destination point code linkset byte/packet statistics, accounting information per Destination Point Code(DPC) and Originating Point Code (OPC) violation accounting information per DPC and OPC links, reference to incoming and outgoing ACL reference to a routing table for each SS7 packet type Links contain: timers, and byte/packet statistics. The figure below provides a diagrammatic representation of the relationships. Each box may be replicated providing multiple instances of the object. ' a reference to the object to the right. '###>' indicates that the object to the left contains an instance of the object to the right. The down arrow indicates that the object being pointed to contains snmp indices of the objects above it. ________________ | | | Sp |###> point code, timers |________________| | V ________________ | | | | | Linkset | | | | | |________________| | V ________________ | Link |###> timers |________________| Abbreviations: AERM - Alignment Error Rate Monitor CLLI - Common Language Location Codes HSL - High Speed Link (ATM based) LLSC - link set control LSAC - Signalling link activity control LSDA - Signalling data link allocation LSLA - Signalling link activation LSLD - Signalling link deactivation LSLR - Signalling link restoration LSSU - Link Status Signal Unit LSTA - Signalling terminal allocation MTP - Message Transport Protocol MTP2 - Layer 2 of Message Transport Protocol MTP3 - Layer 3 of Message Transport Protocol PC - Point Code RTN - RouteTableName SCTP - Stream Transmission Protocol(RFC 2960) SIB - Status Indicator Busy SP - Signalling Point SS7 - System No. 7 (SS7) Network SUERM - Signal Unit Error Rate Monitor TCBC - Changeback control TCOC - Changeover control TCRC - Controlled rerouting control TFRC - Forced rerouting control TLAC - Link availability control TPRC - Signalling point restart control TRCC - Signalling route set congestion control TSFC - Signalling traffic flow control TSRC - Signalling routing control