Method, system and device for expanding the number of virtual routers based on VRRP protocol

Abstract

The invention discloses a method for expanding the number of virtual routers based on a virtual router redundancy protocol (VRRP). The method comprises the following steps: a first step of creating a VRRP notification message through a first virtual router in a first network entity device, a second step of generating a virtual route identifier (VRID) according to a first virtual address in the VRRP notification message through the first virtual router and adding the VRID to the VRRP notification message, a third step of sending the VRRP notification message to a switchboard through the first network entity device and sending the VRRP notification message to a second network entity device through the switchboard, wherein the second network entity device is connected with the switchboard, a fourth step of finding a virtual router corresponding to the first virtual router through the second network entity device according to the VRID and virtual IP (VIP) addresses in the VRRP notification message. The invention further discloses a system and a device for expanding the number of the virtual routers based on the virtual router redundancy protocol (VRRP). The virtual route identifier (VRID) can be generated through the virtual IP addresses, and therefore the number of the virtual devices can be expanded.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method, system and device for expanding the number of virtual routers based on the VRRP protocol. Background technique [0002] In a network based on the TCP / IP (Transmission Control Protocol / Internet Protocol) protocol, in order to ensure communication between devices that are not directly physically connected, a route needs to be specified. Traditionally, commonly used methods for specifying routes include dynamic learning and static configuration through routing protocols (eg, internal routing protocols RIP and OSPF). Although the static routing method simplifies the complexity of network management and reduces the communication overhead of terminal equipment, it still has the following disadvantages: if the router as the default gateway is damaged, all communications using this gateway as the next hop host must be interrupted . Even if multiple default gateways are...

AI Technical Summary

Problems solved by technology

Although the static routing method simplifies the complexity of network management and reduces the communication overhead of terminal equipment, it still has the following disadvantages: if the router as the default gateway is damaged, all communications using this gateway as the next hop host must be interrupted

Although this method can be supported by the VRRP protocol itself, the required VRRP message decryption algorithm needs to generate and distribute different encryption keys, which will cause additional pressure on the processor and is not convenient for large-scale data center deployment.

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