Method for handling IP network congestion by MTP2 user adaption

Abstract

A method for the Message Transfer Part layer 2 User Adaptation process the IP network congestion, It including the following step: 1 defines a Congestion Indication primitive that indicate one SCTP take place a congestion; And a SIB message that take place a congestion in present end is transmitted to opposite end; Define a Congestion Indication that transmit to the opposite end from the present end to notify that take place a congestion in present end; 2 Generates a Congestion Indication message, and the M2UA control the flow of signaling information that transmit to IP network through the upper layer of SCTP, when the SCTP take place a congestion. While IP network take place a congestion, because of the present invention can notify MTP2 or MTP3 to reduce or break off the transmit of signaling information through the upper layer user M2UA of SCTP utilize crafty the congestion report message between MTP2 and MTP3, thus reliable control the flow of signaling information that transmit to IP network, alleviate the IP congested states and avoid the loss of signaling message effectively.

Description

technical field [0001] The present invention relates to a broadband telecommunication network into a next-generation network, in particular to a process for transmitting No. 7 signaling messages using message transfer part layer 2 user adaptation (M2UA-MTP2 (Message Transfer Part Layer 2) User Adaptation) on an IP network MTP2-MessageTransfer Part Layer 2 (MTP2-MessageTransfer Part Layer 2) method for congestion status of user messages. Background technique [0002] In the traditional telecommunication network, there are already a series of norms and technologies to ensure the reliability of the signaling system, such as the currently mature narrowband No.7 signaling system. With the gradual maturity of IP packet network technology, IP packet network can be used to carry voice, data, multimedia and other services. The traditional circuit-switched network and packet network are in the stage of integration. In order to realize the intercommunication between traditional circuit...

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Problems solved by technology

[0006] This processing has a big defect, because IP congestion is actually unidirectional. For example, when SCTP reports IP congestion on the SG side, it means that the message flow from SG to ASP should be reduced, but the message from ASP to SG should not be affected. influences

At this time, if LPO is sent to MTP2, although MTP2 will not send messages to the upper layer to reduce congestion, it will also discard the messages sent by the upper layer, thus discarding the messages sent by the ASP to the SG

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