Method and device for reducing message congestion in link management protocol

Abstract

The invention provides a method and a device for reducing message congestion in a link management protocol. The method for reducing the message congestion in the link management protocol, which is applied to a first node side, comprises the following steps of sending a link management protocol configuration Config message carrying a resend interval configuration parameter ResendIntervalConfig to a second node; receiving a response message which is fed back by the second node, and sending the message to the second node with the resend interval configuration parameter set in the link management protocol configuration Config message as a standard when the response message is a negotiation acknowledgement message of the second node; and sending the message to the second node based on a resend interval configuration parameter ResendIntervalConfig set in a negotiation failure message until the negotiation is successful when the response message is the negotiation failure message of the second node. Through determining a resend interval and resend times for sending the message between the nodes, the risk of the message congestion on the nodes is reduced within a controllable range, and the stability for network transmission is improved.

Description

technical field [0001] The invention relates to the field of data network communication, in particular to a method and device for reducing message congestion in a link management protocol. Background technique [0002] In the current GMPLS protocol suite (Generalized multi-protocol label switching, general multi-protocol label switching protocol), LMP (Link Management Protocol, link management protocol) is used to manage links between nodes and control channels (IPCC: IP Control Channel) management. [0003] The functions of LMP include control channel management, link attribute association, link connectivity verification and fault management. Among them, the first two are used to manage traffic engineering (TE: Traffic Engineering), which is a necessary core function of the link; the latter two are optional extension functions, which are used to deal with the separation of the control channel and the data channel. [0004] The messages in the LMP protocol are all UDP (Use...

AI Technical Summary

Problems solved by technology

Due to the large number of messages, the Ack message sent to the neighbor or the message responding to the neighbor cannot be processed in time, so the surrounding neighbors will periodically send retransmission messages because they cannot receive the Ack message. Further, it is almost doubled, and the cycle repeats, leading to a vicious cycle, causing message congestion on the network, and the control messages cannot be refreshed in time, which in turn causes the control plane to oscillate, affecting the stability of the entire network

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