Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1998-04-17
1999-12-07
Marcelo, Melvin
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370392, 370432, H04J 326
Patent
active
059995319
ABSTRACT:
A method and apparatus for routing packets through a multiport switch involves attaching indicators to packets before the packets are passed through a switch fabric, and then using the indicators to look-up output port vectors after the packets have been passed through the switch fabric. In a preferred embodiment of a 64.times.64 port switch, an 8-bit output channel vector and a 15-bit output port index are attached to a packet and passed through the switch fabric. The 8-bit output channel vector directs the packet to the proper output packet processor(s) and the 15-bit output port index is used to look-up an output port vector that identifies the output port(s) that will receive the packet. The method and system provide low packet overhead and flexible scaling.
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Ferolito Philip Arnold
Pfile Robert W.
Cabletron Systems Inc.
Marcelo Melvin
Wilson Mark A.
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