Communications network with routing tables for establishing...

Details Communications network with routing tables for establishing... Communications network with routing tables for establishing...

2008-07-08

2008-07-08

Kizou, Hassan (Department: 2619)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

Reexamination Certificate

active

10196985

ABSTRACT:
In a communications network where cross-connect nodes are organized according to geographic domains, a domain connectivity table indicates intra-domain connectivity of each domain and a domain routing table indicates a route specifying those nodes whose intra-domain connectivity is indicated in the domain connectivity table. Each node uses its domain routing table to establish a path between edge nodes. In another embodiment, the domain routing table indicates routes containing no intra-domain virtual link that terminates at an edge node and no consecutively concatenated intra-domain virtual links. A backbone routing table indicates inter-domain routes and unreachability indications between border nodes of each domain and border nodes of every other domain. The inter-domain routes contain at least one of the inter-domain physical links but contain no consecutively concatenated intra-domain virtual links.

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