The Message Transfer Part (MTP) enabler provides the routing and network interface capabilities that support SCCP, TCAP, and ISUP. MTP is divided into three levels. MTP Level 1 defines the physical, electrical, and functional characteristics for the signaling data link. MTP Level 2 provides the reliability aspects of MTP including error monitoring and recovery. MTP Level 3 provides the link, route, and traffic management aspects of MTP. The MTP software and boards support ITU-T, ANSI, TTC, NTT, and Chinese variants of the protocol, enabling Signalware-based applications to be widely deployed.
Functions:
MTP provides the means to:
- Interface with the SS7 network
- Detect and correct errors to messages sent on signaling links
- Manage links and routes, thus mitigating failures and congestion within the network should they occur
MTP provides routing services for SCCP and ISUP on a point-to-point basis. In addition, MTP supports TCAP, which depends upon SCCP, as well as the protocols such CAP, GSM MAP, TIA/EIA-41, and INAP that are supported by TCAP.
In Signalware, MTP is implemented via Signalware software and boards, which support T1/E1/J1, High Speed Link (HSL), and ATM interfaces.
Features:
Signalware supports the relevant addressing (point code) scheme required by ITU-T, ANSI, NTT, TTC, and China. In addition, Signalware supports:
- 1,024 signaling links per Computing Element(CE) (up to 4096 signaling links in a 4 CE cluster)
- 1,024 linksets
- 10,000 (routesets) destination point codes
- 8 routes per destination point code
- 16 links per linkset
- 8 combined linksets (ANSI)
- 8 point codes (network appearences) per Signalware instance
Signalware supports the following standards:
- ITU-T Q.701-706, Q.781
- ANSI T1-111.1-111.8
- NTT Q.701-704
- TTC JT-Q.701-704
- Chinese GF 001-9001