Abstract
A bottleneck arises in backbone electronic Internet Protocol (IP) routers
because the lookup in a routing table is performed according to the longest prefix
match. To resolve this problem, a versatile optical-code- (OC-) based longest prefix
match that uses variable-length optical gates for photonic IP packet routing has
been developed. The developed OC-based IP routing with the longest prefix match will
reduce the number of routing entries so that the matching entry can be found more
quickly. Moreover, the new routing procedure will help make photonic routers more
compact and cost effective.
© 2002 Optical Society of America
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