Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-11-08
2005-11-08
Pham, Chi (Department: 2667)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S389000, C370S412000
Reexamination Certificate
active
06963566
ABSTRACT:
A multiport device includes an internal rules checking (IRC) circuit that makes frame forwarding decisions for frames received from a network. The IRC circuit includes multiple frame lookup components implemented in parallel. More particularly, each of the multiple frame lookup components includes a source address lookup component and a destination address lookup component, and an address table. The source address lookup component and the destination address lookup component accesses the address table to determine the correct forwarding information for a frame. If an address is not present in the table, a source address learning component updates the table. The source address learning component may be shared by each of the multiple frame lookup components.
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patent: 2002/0101867 (2002-08-01), O'Callaghan et al.
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U.S. Appl. No. 09/851,939, filed May 10, 2001.
Kaniz Marufa
Viswanath Somnath
Harrity & Snyder LLP
Murphy Rhonda
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