Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-01-04
2005-01-04
Kizou, Hassan (Department: 2662)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000, C370S413000, C370S392000, C370S907000, C379S900000
Reexamination Certificate
active
06839359
ABSTRACT:
A line card for a data packet router interfaces to a high-speed standard data link, and has a first portion interfacing to the router and having a plurality of slower ports, and a second portion having a framer compatible with and coupled to the data link. The framer is coupled through an ingress and an egress data path between the framer and the slower ports, each with separate ingress buffers and egress buffers for each port. An interface control circuit controls data packet transfers between the slower ports and the framer in both directions. In a preferred embodiment a function is used by the control circuit to map packets from the link to the ports, using keys extracted from the incoming packets. For an IP packet the key is the source address, destination address (SA/DA)pair, which constrains packets for same IP conversations to be routed by the same path.
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Cuppett Jeff
Skirmont David
Tuck Russ
Boys Donald R.
Central Coast Patent Agency Inc.
Elallam Ahmed
Kizou Hassan
Pluris, Inc.
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