Routing information synchronization method and equipment

Abstract

The invention discloses a routing information synchronization method, which comprises the following steps that any router determines the priority of a routing information updating message to be flooded by a configured priority strategy; the routing information updating message with a high priority is preferentially flooded; and therefore each neighbor router carries out routing computation according to the locally-configured priority strategy. On the basis of the same inventive concept, the invention also provides equipment, and the routing information with the high priority can be preferentially synchronized to the neighbor router so as to preferentially converge the flow of the high priority.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for routing information synchronization. Background technique [0002] An important indicator for measuring unicast routing protocols is the fast convergence of routes. The unicast routing protocols include the Open Shortest Path First (OSPF) protocol, the Intermediate system to intermediate system (IS-IS) protocol, the Routing Information Protocol (RIP), and the boundary Gateway protocol (border gateway protocol, BGP). With the development of services, higher requirements are put forward for the convergence of unicast routing, and different services require convergence according to priority. [0003] The processing procedures of each unicast routing protocol are similar. The IS-IS protocol is used as an example to illustrate the priority convergence process of different traffic. see figure 1 , figure 1 It is a schematic diagram of ne...

AI Technical Summary

Problems solved by technology

However, when R4 floods the received routing information on R2 and R3 to R1, R1 will not receive all the routing information on R2 and R3 at the same time, and then process the routing information received at that time according to the service priority When calculating, routes cannot be calculated first for high-priority services, and high-priority service traffic may not be sent first.

[0008] It can be seen from the above that the received routing information can only be calculated according to the priority on the directly connected device, and for the non-directly connected device, since the routing information needs to be flooded, in practical applications, it cannot be prioritized. High routing information is used for routing calculations, so traffic with higher priority cannot be sent first.

Images