Path optimizing selection method and system based on route reflector

Abstract

The invention discloses a path optimizing selection method and system based on a route reflector, and relates to the field of data communication. The method comprises the following steps: a first route reflector acquires the whole network topology information and receives the whole network complete BGP route information sent by a second route reflector; the first route reflector collects and analyzes the whole network traffic flow direction data and link utilization factor data, and formulates a traffic grooming and optimizing strategy; according to the whole network topology information, the whole network complete BGP route information, the whole network traffic flow direction data and the link utilization factor data, the first route reflector reflects an optimized BGP route to a to-be-optimized path router according to the traffic grooming and optimizing strategy. The multipath load balancing of the traffic can be realized, and the problem of the production of the suboptimum route caused by the lack of the whole network topology visual angle is avoided. Furthermore, the processing burden of the first route reflector can be reduced since the first route reflector only needs to establish IBGP connection with the router referring to path optimization.

Description

technical field [0001] The present invention relates to the field of data communication, in particular to a routing reflector-based path optimization method and system. Background technique [0002] In the prior art, when a route reflector (Route Reflector, RR) receives multiple routes of the same destination network, due to following the standard BGP route selection principle, there are the following limitations: [0003] 1. The principle of uniqueness in route selection causes RR to only reflect the only preferred route to routers in the entire network, causing some links to be congested, while other links are often empty or lightly loaded, making it impossible to achieve multi-path load balancing of traffic. [0004] 2. Since the RR selects a route with the closest IGP distance based on the IGP metric (Metric) value from itself to the advertising router (next hop), this preferred route is related to the location of the RR, and cannot represent other routers in the entire ...

AI Technical Summary

Problems solved by technology

[0003] 1. The principle of uniqueness in route selection causes RR to only reflect the only preferred route to the routers in the entire network, causing some links to be congested, while other links are often empty or lightly loaded, making it impossible to achieve multi-path load balancing of traffic

[0004] 2. Since the RR selects a route with the closest IGP distance based on the IGP metric (Metric) value from itself to the advertising router (next hop), this preferred route is related to the location of the RR, and cannot represent other routers in the entire network to this route. The selected BGP next hop is the closest, and the lack of the perspective of the

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