Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-06-27
2006-06-27
Qureshi, Afsar (Department: 2667)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S354000, C370S428000, C709S238000
Reexamination Certificate
active
07068661
ABSTRACT:
A method and apparatus for providing distributed communication routing includes a route computation engine operably coupled to a plurality of forwarding engines within a logically distributed router. Registration information is provided to the route computation processor by the forwarding engines, and the forwarding engines are recognized and identified by the route computation processor in response. The registration information includes information regarding interfaces or connections amongst the forwarding engines and external routers and other external destinations. The route computation processor provides control information to at least one of the plurality of forwarding engines for distributed routing maintenance and/or specific data forwarding operations. Distributed routing maintenance includes monitoring the status of the forwarding engines, while specific data forwarding operations include tunneling messages relayed to and from the route computation processor by the forwarding engines and packet formatting information that controls how the format of packets forwarded by a forwarding engine.
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Murakami et al., RFC 2171, MAPOS-Multiple Access Protocol over SONET/SDH version 1, pp. 1-9, Jun. 1997.
Brim Scott
Gollamudi Ramana V.
Gorur Ravi
Halpern Joel M.
Watt James
Alcatel Canada Inc.
Qureshi Afsar
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