Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2009-02-27
2011-10-18
Phillips, Hassan (Department: 2467)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000
Reexamination Certificate
active
08040897
ABSTRACT:
In one embodiment, bridges in a computer network maintain a per-port mapping table for each of its ports, where each mapping table maps, for each virtual connection (of more than 4K) at a respective port, i) frame encapsulation fields that uniquely identify a particular virtual connection at the respective port to ii) a particular multiple spanning tree (MST) instance. The bridges may then compute a checksum of a particular mapping table for a particular port, and share the checksum with a corresponding port interconnected with the particular port (e.g., of another bridge). Upon determining that the mapping tables at the corresponding ports match in response to the checksums matching, frames may then be forwarded between the ports based on the particular mapping table.
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Finn Norman W.
Mehta Munish
Yang Yibin
Cesari and McKenna LLP
Choi Eunsook
Cisco Technology Inc.
Phillips Hassan
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