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Sigtran(信令传送)是支持通过IP网络传输SCN(电路交换网络)信令协议的协议栈。该协议栈支持SCN信令协议分层模型定义中的层间标准原语接口,从而保证已有的SCN信令应用可以未经修改地使用,同时也利用标准的IP传输协议作为传输底层,通过增加自身的功能来满足SCN信令的特殊传输要求。主要介绍Sigtran协议的应用背景、实现功能、基本概念、组成结构以及相关协议,最后介绍Sigtran在现网中的应用。
Sigtran (Signaling Transport) is a protocol stack that supports the transmission of SCN (Circuit Switched Network) signaling protocols over IP networks. The protocol stack supports the inter-layer standard primitive interface in the definition of the layered model of the SCN signaling protocol so as to ensure that the existing SCN signaling application can be used unmodified, and also uses the standard IP transport protocol as the transmission bottom layer to pass Increase its own function to meet the special transmission requirements of SCN signaling. It mainly introduces the application background of Sigtran protocol, its functions, basic concepts, composition and related protocols. Finally, it introduces the application of Sigtran in the current network.