Performance Improvement in Policy Based Routing Without Route Cache
Publication Date: 2016-Feb-22
The IP.com Prior Art Database
In Policy Based Routing (PBR) implementations without route cache, performance depends on preferential treatment for forwarding or termination traffic, which negatively impacts the performance of traffic with lower preference. The lower preferential traffic has to lookup at least two PBR rules and two routing tables to send the packet to the destination. This paper describes a method with which a single PBR & Route lookup is performed for termination packet or forwarding packet. PBR rules can be stored using Algorithmic Access Control List (AACL) accelerator to accelerate PBR lookup. This method improves the performance for termination/forwarding traffic significantly depending on the preferential treatment.