Switch method and apparatus with cut-through routing for use...

Details Switch method and apparatus with cut-through routing for use... Switch method and apparatus with cut-through routing for use...

2004-06-08

2009-10-13

Patel, Jayanti K (Department: 2419)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S392000, C370S400000, C370S428000

Reexamination Certificate

active

07602712

ABSTRACT:
One embodiment of the invention provides a method of operating a switch with cut-through routing in a communications network. The method includes receiving a packet at a first port of the switch and determining a second port of the switch from which the received packet is to be forwarded out over the network. At least one authentication check is performed on the received packet. In general, the switch starts to forward the received packet from the second port prior to complete reception of the packet at the first port. However, this onward transmission is delayed until the authentication check has completed. This ensure that none of the received packet is forwarded from the second port if any authentication check fails.

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“A Keyword Match Processor Architecture using Content Addressable Memory”, Long Bu and John A. Chandy, GLSVLSI'04, Apr. 26-28, 2004, Boston, Massachusetts, ACM, p. 372-376.

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