Method and device for reducing the number of messages in lmp

Abstract

The present invention relates to a method and device for reducing the number of messages in LMP. The method includes: obtaining the splicing destination address of the third node according to the current control channel of the second node; configuring a splicing enable command on the second node; Construct the Config message above, and send to the first node; Carry the Config object that is written with the splicing destination address of the third node in the Config message; Parse the Config message on the first node, obtain the splicing destination address of the third node; According to the third node The splicing destination address of the node establishes a virtual control channel between the first node and the third node. The invention reduces the establishment process of the control channel, reduces the number of Hello messages sent in LMP, reduces message overhead, and avoids the network congestion problem caused by the sending of LMP Hello messages; in addition, it can further solve the problem of Hello messages between certain nodes Failed technical issues.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for reducing the number of messages in an LMP (Link Management Protocol, 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] Contro...

AI Technical Summary

Problems solved by technology

[0005] Since the Hello message is at the control channel level, that is, each control channel has its own Hello message to send, then when the number of network nodes increases, the number of control channels also increases, which will lead to an explosive growth in the number of Hello messages

In a topology where nodes are interconnected in pairs, such as figure 1 As shown, there are 4 nodes in total, so under normal circumstances there will be 4*3 control channels. By extension, in a network containing N nodes (nodes are interconnected in pairs), then there are N*(N -1) Control channels, each control channel sends Hello messages at a period of milliseconds (RFC4204 recommends that the Hello sending period is 150 milliseconds), it is conceivable that when N must be large, the amount of Hello messages will be large, and the message overhead It will be very large, and in severe cases, it will cause network congestion, affect the sending and receiving of business control messages, cause business interruption, and cause unpredictable consequences

Images