Communication method and system for stream control transmission protocol (SCTP) couple

Abstract

The invention provides a communication method for a stream control transmission protocol (SCTP) couple. The method comprises the following steps of: configuring actual Internet protocol (IP) addresses of a local network element and an opposite network element of the SCTP couple, wherein the actual IP address of the local network element is configured on an interface board of the local network element; generating a virtual address of the actual IP address of the local network element, and configuring the virtual address on a signaling plane processing board of the local network element; and performing communication between the local network element and the opposite network element according to mapping between the actual IP address and virtual address of the local network element and the actual IP address of the opposite network element. By the method, configuration can be simplified and network resources can be saved on the basis of no influence of board-level failures.

Description

technical field [0001] The invention relates to the technical field of signaling communication, in particular to an SCTP coupling communication method and an SCTP coupling communication system. Background technique [0002] In the past 20 years, as a reliable data transmission method, TCP has provided many application services, but with the multi-service of IP network, especially the development of VolP, TCP has many limitations, such as for VolP signaling and asynchronous transaction-based application processing. In order to adapt to the development trend of IP network becoming the core network of telecom operation, IETF's Signaling Transmission Working Group (SIGTRAN) has been researching and formulating a new generation of transmission protocol for IP network, and defined Stream Control Transmission Protocol (SCTP) in IETF RFC 2960 , Stream Control Transmission Protocol). SCTP is a connection-oriented reliable transport protocol, which provides the following services to...

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Problems solved by technology

[0011] However, for the first method, since the multi-homing ports are configured on the same board, the SCTP protocol processing is also processed on the board. When the board fails, all ports are unavailable, resulting in coupling Not available, in this case, the SCTP connection will be disconnected, resulting in the interruption of the transmission, and cannot support the implementation of SCTP-coupled addresses to support multi-homing

[0012] For the second method, the SCTP protocol is processed on the signaling plane processing board and routed out of the network element through the interface board. At present, most devices separate the IP address of the network element interface from the IP address of the signaling plane. In terms of application, it is necessary to assign IP addresses to the signaling plane and the network interface respectively, and the routing of the IP address of the signaling plane via the IP address of the interface must be configured, so that the network element will consume one more IP address, and when the signaling data is sent from When the signaling plane processing board is transferred to the interface processing board, routing needs to be configured. This configuration is more complicated, and the IP addresses allocated to network elements are doubled, which is a waste of network resources.

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