Layer 2 address translation for service provider wholesale...

Details Layer 2 address translation for service provider wholesale... Layer 2 address translation for service provider wholesale...

2007-01-09

2010-11-23

Shah, Chirag G (Department: 2477)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S401000

Reexamination Certificate

active

07839855

ABSTRACT:
A method involving receiving, at a network device, a first layer 2 network packet from a client, the first layer 2 network packet encapsulating a layer 3 network packet; forwarding the first layer 2 network packet to a server by associating the layer 3 destination host with a particular server connected to the network device, creating a modified first layer 2 network packet by overwriting the layer 2 destination address of the first layer 2 network packet with the layer 2 network address of the server, and sending the modified first layer 2 network packet over a network; receiving, at the network device, a second layer 2 network packet from the server; and forwarding the second layer 2 network packet to the client by creating a modified second layer 2 network packet by overwriting the layer 2 source address of the second layer 2 network packet with the layer 2 network address of the network device and sending the modified second layer 2 network packet over a network.

REFERENCES:
patent: 2002/0107023 (2002-08-01), Chari et al.
patent: 2002/0186698 (2002-12-01), Ceniza
patent: 2005/0114522 (2005-05-01), LaVigne et al.
patent: 2005/0147097 (2005-07-01), Chari et al.
patent: 2006/0028983 (2006-02-01), Wright

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