Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-04-07
2009-12-29
Ryman, Daniel J (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000, C370S410000, C370S466000, C370S475000, C709S225000, C709S228000, C709S229000
Reexamination Certificate
active
07639686
ABSTRACT:
An IPv4 host is able to maintain connectivity within an access network while moving among access points of the access network, based on receiving a unique assigned IPv4 address from a clusterhead of the access network. Any DHCP request by the IPv4 host is sent via the connecting access point to the clusterhead. The clusterhead, providing connectivity for hosts in the access network to a wide area network based on respective entries, assigns the IPv4 address to the IPv4 host, based on storing an entry including the IPv4 address and an IP-based identifier of the connecting access point, and sends a DHCP response to the IPv4 host via the connecting access point. A second DHCP request from the IPv4 host to a second access point causes the clusterhead to update the entry with the second access point identifier, enabling the IPv4 host to continue use of the assigned IPv4 address.
REFERENCES:
patent: 5818838 (1998-10-01), Backes et al.
patent: 6041041 (2000-03-01), Ramanathan et al.
patent: 6393484 (2002-05-01), Massarani
patent: 6587468 (2003-07-01), Dos Santos et al.
patent: 6850532 (2005-02-01), Thubert et al.
patent: 6912219 (2005-06-01), Tsuchiya et al.
patent: 7277453 (2007-10-01), Chin et al.
patent: 2002/0021697 (2002-02-01), Tsuchiya et al.
patent: 2004/0032852 (2004-02-01), Thubert et al.
patent: 2004/0057440 (2004-03-01), Thubert et al.
patent: 2004/0081152 (2004-04-01), Thubert et al.
patent: 2004/0088385 (2004-05-01), Blanchet et al.
patent: 2004/0103212 (2004-05-01), Takeuchi et al.
patent: 2004/0179508 (2004-09-01), Thubert et al.
patent: 2004/0179532 (2004-09-01), Thubert et al.
patent: 2004/0179536 (2004-09-01), Thubert et al.
patent: 2004/0190549 (2004-09-01), Huitema
patent: 2004/0199666 (2004-10-01), King et al.
patent: 2004/0233916 (2004-11-01), Takeuchi et al.
patent: 2004/0240468 (2004-12-01), Chin et al.
patent: 2004/0246931 (2004-12-01), Thubert et al.
patent: 2005/0089025 (2005-04-01), Boyer et al.
patent: 2005/0099971 (2005-05-01), Droms et al.
patent: 2005/0117560 (2005-06-01), Thubert et al.
patent: 2005/0286553 (2005-12-01), Wetterwald et al.
IPv6 Address types, http://web.archive.org/web/20050302122543/http://docs.hp.com/en/B3936-90073/apis01.html, Mar. 2, 2005.
Perkins, “Cluster-Based Networks”,Ad Hoc Networking, 2001, pp. 75-138, Addison-Wesley.
Droms, “Dynamic Host Configuration Protocol”, Network Working Group, Request for Comments: 2131, Mar. 1997.
Perkins, Ed., “IP Mobility Support”, Network Working Group, Request for Comments: 2002, Oct. 1996.
Perkins, Ed., “IP Mobility Support for IPv4”, Network Working Group, Request for Comments: 3220, Jan. 2002.
Ribiere Vincent Jean
Thubert Pascal
Wetterwald Patrick
Cisco Technology Inc.
Divecha Nishant B
Ryman Daniel J
Turkevich Leon R.
LandOfFree
Access network clusterhead for providing local mobility... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Access network clusterhead for providing local mobility..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Access network clusterhead for providing local mobility... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4145414