Method for C path state detecting of V5 access adaptation

Abstract

The invention is a V5 access and adapter C-path state detecting method, defining C-path state request, stop and indication information between soft exchange and signaling gateway; the soft exchange sends C-path state request information to the signaling gateway at regular time; the signaling gateway responds with C-path state indication information with different state-value parameters according to the current C-path actual state; the soft exchange receives the C-path state indication information from the signaling gateway, and confirm the allocated C-path state; information-appointed C-path is not configured on the soft exchange, the soft exchange notifies the gateway to cancel C-path allocation, and the signaling gateway receives C-path state stop information from the soft exchange, and confirm specific C-path allocation relation cancel. The soft exchange has a mechanism of actively detecting C-path state. Compared with the existing techniques, soft exchange can detect failure in access device and takes protective action, so as to make network communication more reliable and high-efficiency.

Description

technical field [0001] The invention relates to V5 signaling (a kind of access network signaling) in the communication field, and is a C path state detection method for V5 access. Especially when the third-level and second-level functions on the LE (local exchange) side are separated on physical devices, and the devices use the IETF (Internet Engineering Task Force, Internet Engineering Task Force, a standards organization) adaptation layer protocol for intercommunication Condition. Background technique [0002] V5 signaling system is adopted between LE and AN (access network). V5 signaling includes three layers of functions, the second layer of which is the data link function layer. The data link carrying the layer-3 protocol is called a communication path, that is, a C path. The C path is established and removed by V5 layer 3 instructions, and the assignment data of the C path is maintained at the third layer. [0003] The state of the C path is very important to the V...

AI Technical Summary

Problems solved by technology

However, the V5UA protocol does not provide messages and programs for the third-layer entity on the softswitch to detect the C-path status from the second-layer entity on the signaling gateway; Switches are often unable to detect in time and perform appropriate protection operations, which may easily cause failures in call services controlled by softswitches

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