Port label switching

Details Port label switching Port label switching

2008-06-17

2008-06-17

Kizou, Hassan (Department: 2619)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395100, C370S397000, C370S399000, C709S236000

Reexamination Certificate

active

07388863

ABSTRACT:
A communications switch comprising a plurality of numerically identified input traffic ports, a plurality of numerically identified output traffic ports, at least one significant label extractor and at least one numerical processor, the communications switch being arranged whereby each message entering the communication switch by a numerically identified input traffic port contains a header, which header contains a label stack, which label stack includes at least one valid label, of which one valid label is a significant label. The numerical value of the significant label contained within the header of a particular message which entered the communications switch via a particular numerically identified input traffic port is extracted by the at least one significant label extractor and is supplied to one of the at least one numerical processors. The numerical processor uses the significant label of the particular message and the numerical value of the particular numerically identified input traffic port to form a numerical result which directly equates to the number of the numerically identified output traffic port by which the particular message leaves the communications switch and wherein the numerical result is equal to the modulo addition of the numerical value of the significant label and the numerical value of the particular numerically identified input traffic port.

REFERENCES:
patent: 2001/0024438 (2001-09-01), Sugiyama et al.
patent: 2002/0009050 (2002-01-01), Ueno
patent: 2002/0083190 (2002-06-01), Kamiya et al.
patent: 1 168 728 (2002-01-01), None
Rosen, E.C., et al.,Multiprotocol Label Switching Architecture, IETF, <URL:hhtp://www.inf.puc-rio.br/{thyago/refer/tweg/draft-ietf-mpls-arch-06.txt> Aug. 1999, pp. 27 & 31.

Affiliated with

Also associated with

Rating

Port label switching does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Port label switching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Port label switching will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2811603