Method and apparatus for routing data traffic across a...

Details Method and apparatus for routing data traffic across a... Method and apparatus for routing data traffic across a...

2006-02-07

2006-02-07

Chin, Wellington (Department: 2664)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S384000, C370S426000

Reexamination Certificate

active

06996102

ABSTRACT:
Data traffic is conveyed through a node of a communications network. A parameter respecting the data traffic is assigned in an ingress interface of the node, and inserted into an intra-switch header attached to each packet. The data traffic, along with the intra-switch header are forwarded across the node to an egress interface. The parameter is then extracted from the intra-switch header, and used to control processing of the data traffic in the egress interface. The parameter may provide information identifying the source of the data traffic, but may also include other flow-specific information, such as, for example, a normalized DiffServ Code Point. The parameter may be used, in combination with an intra-switch multicast group ID to query one or more translation tables, to thereby enable egress-interface and/or egress port specific replication, forwarding and translation services in respect of the data traffic.

REFERENCES:
patent: 2002/0196796 (2002-12-01), Ambe et al.
patent: 2004/0174898 (2004-09-01), Kadambi et al.

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