CORErouter-I: An Experimental Parallel IP Router Using a Cluster of Workstations

Mitsuru MARUYAMA  Naohisa TAKAHASHI  Takeshi MIEI  Tsuyoshi OGURA  Tetsuo KAWANO  Satoru YAGI  

IEICE TRANSACTIONS on Communications   Vol.E80-B   No.10   pp.1407-1414
Publication Date: 1997/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Network Interworking)
Category: System architecture
internet,  router,  TCP/IP,  parallel processing,  workstation cluster,  routing protocol,  

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A parallel IP router that uses off-the-shelf wor-kstations and interconnecting switches is presented. This router, called CORErouter-I, is a medium-grained, functionally distributed parallel system consisting of four kinds of processors for routing, routing-table searching, servicing, and line interfacing. Also discussed are issues related to the implementation of CORErouter-I, especially in terms of routing protocol processing and packet-forwarding. Performance characteristics of CORErouter-I are also clarified through several experiments performed to evaluate maximum throughput, analyze packet-forwarding time, and estimate the effect of parallel processing on the route-flapping problem.