Local area network switch using control plane packet...

Details Local area network switch using control plane packet... Local area network switch using control plane packet...

2005-03-31

2009-12-01

Rao, Seema S (Department: 2416)

Multiplex communications

Diagnostic testing

Of a switching system

C370S357000

Reexamination Certificate

active

07626938

ABSTRACT:
An Ethernet network device includes a port logic module that is associated with a device port of the Ethernet network device. A packet processing module includes an ingress processing module that receives an incoming packet and that generates a control traffic tag. An ingress command execution module receives the incoming packet and the control traffic tag, generates a duplicate packet that is identical to the incoming packet, and generates a device interface code that identifies the port logic module based on the control traffic tag. A control traffic routing module receives the duplicate packet and the device interface code and forwards the duplicate packet to the port logic module. A network traffic analysis device receives the duplicate packet. The port logic module replaces a first destination header of the duplicate packet with a second destination header that is identical to a destination header of the incoming packet.

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patent: 6041042 (2000-03-01), Bussiere
patent: 6621829 (2003-09-01), Achilles et al.
patent: 7185103 (2007-02-01), Jain
patent: 2004/0003094 (2004-01-01), See
patent: 2004/0049602 (2004-03-01), MacBride
patent: 2004/0196841 (2004-10-01), Tudor et al.
patent: WO 2004/025884 (2004-03-01), None

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