A study on high-speed label search method using CAM for MPLS router

摘要

Recently, with the Internet transforming into high-capacity and multimedia, MPLS (Multi-Protocol Label Switching) is newly focused on. In MPLS network, a core router forwards packets only by checking the label. On the other hand, an edge router needs to decide the next hops of arrival packets from IP address. As for improvement of the router processing, how to make this search speed up is important problem. In this paper, high-speed label search method is proposed on MPLS edge router. In addition, proposed search methods select a LSP satisfying QoS requirements from plural LSPs which are set up in advance. Hardware structure is shown considering the design of this method, and finally, the performance of search speed is evaluated by simulation.