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Design of photonic rearrangeable networks with zero first-order switching-element-crosstalk
No full textNo. 7, July 200
Deflection routing in IP optical networks
No full textThis paper deals with optical packet switching in
a full-IP transport network scenario. Given the technological
limits of accomplishing packet buffering in the optical
domain, deflection routing is here explored as an alternative
technique for resolving packet contentions without buffering
packets. Two different network topologies have been considered
here, that is a regular six-node network with different
connectivity factors and the classical NSF network. A limited
amount of optical buffering is considered in the switching
nodes that performs both input queuing and shared queuing
of packets to be switched. The performance improvements
that can be obtained by deflection routing have been
evaluated considering different methods for choosing the alternative paths where to deflect packets that cannot be transmitted onto the shortest path to the addressed destination
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