Method for realizing VRRP (Virtual Router Redundancy Protocol) flow transmission and routing equipment

Abstract

The invention provides a method for realizing VRRP (Virtual Router Redundancy Protocol) flow transmission and routing equipment, wherein the method comprises the following steps: (A) main routing equipment divides a network section into more than two sub network sections, distributes a corresponding virtual MAC (Media Access Control) address to each sub network section and distributes each sub network section and the corresponding virtual MAC address to the routing equipment included in the virtual router; and (B) the routing equipment distributed with the sub network section and the virtual MAC address publishes the sub network section route corresponding to the distributed sub network section to uplink equipment connected with the virtual router. By using the invention, the problem caused by randomly selecting a route forwarding downlink flow from an equivalent route by the uplink equipment is avoided.

Description

technical field [0001] The invention relates to a network communication technology, in particular to a method and a routing device for realizing virtual router redundancy protocol (VRRP: Virtual Router Redundancy Protocol) traffic transmission. Background technique [0002] When realizing the communication between the client and the external network, the same default gateway is usually set for all the clients in the same network segment, that is, the default route with the same gateway as the next hop is configured, and the packets sent by the client to other network segments It will be sent to the gateway through the default route, and then forwarded by the gateway, so as to realize the communication between the client and the external network. However, when the gateway fails, all clients in this network segment that use the gateway as the default route will not be able to communicate with the external network. It can be seen that although the default route provides conven...

AI Technical Summary

Problems solved by technology

That is to say, whether it is standard VRRP or VRRP that implements load balancing, the route that the upstream device forwards the downstream traffic to the client is randomly selected and cannot be uniquely determined. The route of traffic to the client may also be different

However, in the existing technology, in order to ensure the reliability of traffic transmission, it is necessary to enable some flow-based business functions, such as firewalls and flow control. In the prior art, the uplink device randomly selects a route from equal-cost routes to forward downlink traffic, which obviously cannot meet the conditions for realizing business functions.

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