Redirect checking in a network device

Details Redirect checking in a network device Redirect checking in a network device

2011-07-19

2011-07-19

Sheikh, Ayaz R (Department: 2476)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S236000, C370S238000, C370S392000, C370S400000

Reexamination Certificate

active

07983278

ABSTRACT:
A network device includes an input device configured to receive a data packet, where the input device includes a number of interfaces and the data packet includes a source address and a destination address. The network device also includes processing logic configured to generate forwarding information identifying a next hop for the data packet and determine whether an interface on which the data packet was received is a same interface on which the data packet is to be forwarded to the next hop. The processing logic is also configured to determine whether the data packet originated from a device that is part of a same subnet as the next hop.

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“Redirecting Future Transmissions to an Alternate Router,” Optimized Engineering Corporation, http://www.optimized.com/COMPENDI/ICM-Redr.htm, Jun. 18, 2001 (print date), 5 pages.
Co-Pending U.S. Appl. No. 10/050,106, entitled “Redirect Checking in a Network Device,” by Raymond M. Lim et al., filed Jan. 18, 2002, 34 pages.

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