Multiplex communications – Pathfinding or routing
Reexamination Certificate
2004-09-30
2008-12-30
Ngo, Ricky (Department: 2616)
Multiplex communications
Pathfinding or routing
C370S401000
Reexamination Certificate
active
07471669
ABSTRACT:
A protocol data unit is routed along a path between a first node and a second node within a communication network. The protocol data unit carries routing information which specifies the path in the form of a list of identifiers of the links to be followed towards the second node. At each intermediate node, the link identifier for the link just traversed with a link identifier for the corresponding link in the reverse direction towards the first node. At any point along the path the protocol data unit carries information which allows it to be carried towards the second node, or to follow a reverse path towards the first node. This reverse path can be used to report a fault to the first node.
REFERENCES:
patent: 5309433 (1994-05-01), Cidon et al.
patent: 5504746 (1996-04-01), Meier
patent: 5563878 (1996-10-01), Blakeley et al.
patent: 5917820 (1999-06-01), Rekhter
patent: 6084882 (2000-07-01), Ogura et al.
patent: 6275492 (2001-08-01), Zhang
patent: 7334047 (2008-02-01), Pillay-Esnault
patent: 2006/0002304 (2006-01-01), Ashwood-Smith
patent: 2006/0221929 (2006-10-01), Le Moigne et al.
Packet forwarding Wai Sum Lai, Communications Magazine, IEEE vol. 26, Issue 7, Jul. 1988 pp. 8-17.
U.S. Appl. No. 10/745,886, filed Dec. 25, 2003, Ashwood-Smith et al.
Biddiscombe Martin
Denney Glenn
Sabesan Subramaniam
Barnes & Thornburg LLP
Mui Gary
Ngo Ricky
Nortel Networks Limited
LandOfFree
Routing of protocol data units within a communication network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Routing of protocol data units within a communication network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Routing of protocol data units within a communication network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4041169