Method, master router and system for sending VRRP (virtual router redundancy protocol) heartbeat messages

Abstract

The invention provides a method, a master router and a system for sending VRRP (virtual router redundancy protocol) heartbeat messages in a VRRP backup group. The master router stores routes reaching to a spare router. The method includes that the master router performs IP (internet protocol) packaging to a first VRRP heartbeat message to obtain a second VRRP heartbeat message, the IP packaging refers to that a destination IP address added in front of the first VRRP heartbeat message serves as a spare router IP address, a source IP address serves as a new IP header of a master router IP address; and the master router sends the second VRRP heartbeat message to the spare router according to the stored routes reaching to the spare router. By the scheme, VRRP heartbeat message interaction between the master router and the spare router can be realized when a directly-connected second-layer channel does not exist between the master router and the spare router.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a method for sending heartbeat messages of Virtual Router Redundancy Protocol (VRRP for short), a master router and a system. Background technique [0002] In the existing network architecture, core network devices need to be networked through routers, and data transmission is realized through links between network element devices. VRRP technology is proposed to avoid data transmission being affected by the failure of a single link in the network. [0003] Specifically, VRRP technology virtualizes at least two routers into a virtual router, called a VRRP backup group, with a unified virtual Internet Protocol (Internet Protocol, IP) address and a virtual multimedia access control (Media Access Control, referred to as MAC) Addresses provide routing services for access network devices. In the VRRP backup group, through the priority of each router and the set competition ...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method for sending a VRRP heartbeat message, an active router and a system, so as to solve the problem when there is no direct layer-2 channel between the active router and the standby router in the VRRP backup group in the prior art. Complex configuration and difficult maintenance caused by VRRP heartbeat message exchange between the active router and the standby router through VPLS technology

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