Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-10-17
2006-10-17
Chin, Wellington (Department: 2664)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S238000, C370S392000, C370S393000, C370S401000, C709S242000, C711S203000, C711S213000, C711S217000, C711S220000
Reexamination Certificate
active
07123620
ABSTRACT:
A global path identifier is assigned to each explicit route through a data communication network. The global path identifier is inserted into each packet as the packet enters a network and is used in selecting the next hop. When encountering a new selected path, an ingress router sends an explicit object to downstream nodes of the path to set up explicit routes by caching the next hop in an Explicit Forwarding Information Base (“EFIB”) table. Ingress routers maintain an Explicit Route Table (“ERT”) that tracks the global path identifier associated with each flow through the network. Multiple flows using the same path can be implemented by sharing the same global path identifier. In case of sudden network load changes, rerouting can be performed by changing the global path identifier associated with those flows that need to be rerouted and by then transmitting a new path object to downstream nodes.
REFERENCES:
patent: 4794594 (1988-12-01), Picard
patent: 5088032 (1992-02-01), Bosack
patent: 5095480 (1992-03-01), Fenner
patent: 5249178 (1993-09-01), Kurano et al.
patent: 5274631 (1993-12-01), Bhardwaj
patent: 5274643 (1993-12-01), Fisk
patent: 5280480 (1994-01-01), Pitt et al.
patent: 5291482 (1994-03-01), McHarg et al.
patent: 5303237 (1994-04-01), Bergman et al.
patent: 5317562 (1994-05-01), Nardin et al.
patent: 5331637 (1994-07-01), Francis et al.
patent: 5345446 (1994-09-01), Hiller et al.
patent: 5361256 (1994-11-01), Doeringer et al.
patent: 5361259 (1994-11-01), Hunt et al.
patent: 5408469 (1995-04-01), Opher et al.
patent: 5426637 (1995-06-01), Derby et al.
patent: 5428607 (1995-06-01), Hiller et al.
patent: 5430715 (1995-07-01), Corbalis et al.
patent: 5452297 (1995-09-01), Hiller et al.
patent: 5477536 (1995-12-01), Picard
patent: 5524254 (1996-06-01), Morgan et al.
patent: 5583862 (1996-12-01), Callon
patent: 5610910 (1997-03-01), Focsaneanu et al.
patent: 5617421 (1997-04-01), Chin et al.
patent: 5740171 (1998-04-01), Mazzola et al.
patent: 5764756 (1998-06-01), Onweller
patent: 5802047 (1998-09-01), Kinoshita
patent: 5802316 (1998-09-01), Ito et al.
patent: 5867495 (1999-02-01), Elliott et al.
patent: 5872783 (1999-02-01), Chin
patent: 5959990 (1999-09-01), Frantz et al.
patent: 6026087 (2000-02-01), Mirashrafi et al.
patent: 6091725 (2000-07-01), Cheriton et al.
patent: 6151324 (2000-11-01), Belser et al.
patent: 6408001 (2002-06-01), Chuah et al.
patent: 6522630 (2003-02-01), Ooms et al.
patent: 6526056 (2003-02-01), Rekhter et al.
patent: 0 567 217 (1993-10-01), None
patent: 95/20850 (1995-08-01), None
patent: 97/38511 (1997-10-01), None
US Publication 2001/0021190, Hummel, Method for transmitting data packets to a number of receivers in a heterogeneous communications network.
US Publication 2002/0091855, Yemini et al., Method and apparatus for dynamically addressing and routing in a data network.
US Publication 2002/0163889, Yemini et al., Method and apparatus for providing services on a dynamically addressed network.
Allen, M., Novell IPX Over Various WAN Media (IPXWAN), Dec. 1993, Novell, Inc., Network Working Group, pp. 1-22.
Doeringer, Willibald, et al., “Routing on Longest-Matching Prefixes”, Feb. 1996, IEEE/ACM Transactions on Networking, vol. 4, No. 1, pp. 86-97.
Awduche, et al., “Requirements for Traffic Engineering Over MPLS”, Jun. 1999, Internet Engineering Task Force, Internet Draft, MPLS Working Group, Category: Informational, pp. 1-28.
Rosen, et al., “Multiprotocol Label Switching Architecture”, Apr. 1999, Network Working Group, Internet-Draft, pp. 1-62.
Chin Wellington
Cisco Technology Inc.
Mew Kevin
Ritchie David B.
Thelen Reid & Priest LLP
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