Device and method for handling MPLS labels

Details Device and method for handling MPLS labels Device and method for handling MPLS labels

2007-02-06

2007-02-06

Lane, Jack A. (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

Reexamination Certificate

active

10728639

ABSTRACT:
A device and method for handling Multiprotocol Label Switching (MPLS) label stacks. An incoming label mapping (ILM) table is stored in a first memory. A received packet's label stack is accessed, and an entry corresponding to a top label of the stack is read from the ILM table. A number of other entries are also read from the ILM table, and these other entries are cached in a second memory.

REFERENCES:
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patent: 2002/0003797 (2002-01-01), Rautenberg
patent: 2002/0060985 (2002-05-01), Lee et al.
patent: 2003/0002444 (2003-01-01), Shin et al.
patent: 2003/0053464 (2003-03-01), Chen et al.
patent: 2003/0065815 (2003-04-01), Klink
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patent: 2003/0137983 (2003-07-01), Song
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patent: 2003/0174706 (2003-09-01), Shankar et al.
IETF RFC 2702, “Requirements for Traffic Engineering Over MPLS”, Sep. 1999, 1-28 pgs.
IETF RFC 3031, “Multiprotocol Label Switching Architecture”, Jan. 2001, 1-57 pgs.
IEFT RFC 3036, “LDP Specification”, Network Working Group, Jan. 2001, 1-124 pgs.

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