Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-10-17
2006-10-17
Pham, Chi (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
07123615
ABSTRACT:
A cascaded stack of routing units each of which routes packets that it receives at its external ports and which conduct an election for a lead router that lends network and media access control addresses to the router interfaces of the other units in the stack. These other subordinate units have selected ancillary functions suppressed but otherwise have full routing capability. A packet entering the stack and requiring routing is routed by the unit that receives it and is thereafter bridged to its egress port.
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Goodfellow Maurice A
Weyman Raphael J
3Com Corporation
Ly Anh-Vu
Pham Chi
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