Packet routing apparatus having label switching function

Details Packet routing apparatus having label switching function Packet routing apparatus having label switching function

2006-04-18

2006-04-18

Pham, Brenda (Department: 2664)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S392000

Reexamination Certificate

active

07031307

ABSTRACT:
A packet routing apparatus holds at the least one policy condition, and at the least one label corresponding to the respective policy condition. The packet routing apparatus receives a packet, and determines whether any layer information included in the packet information matches any policy conditions. If at the least one layer information matches any policy condition, a label corresponding to this policy condition is extracted. The packet routing apparatus attaches the label to the packet and transmits the packet.

REFERENCES:
patent: 6341127 (2002-01-01), Katsube et al.
patent: 6538991 (2003-03-01), Kodialam et al.
patent: 6822940 (2004-11-01), Zavalkovsky et al.
E. Rosen, et al., “Multiprotocol Label Switching Architecture,”Standards Track,Network Working Group [Cisco Systems, Inc.; Force10 Networks, Inc.; Juniper Networks, Inc.], ©The Internet Society (Jan. 2001), pp. 1-61.

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