Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-02-02
2010-11-16
Kumar, Pankaj (Department: 2467)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C709S252000
Reexamination Certificate
active
07835378
ABSTRACT:
A mechanism is provided to configure a plurality of transport trees in a transport network, each of which correspond to a native tree (e.g., a bidirectional multicast tree). In embodiments of the present invention, each of the plurality of transport trees has a unique root node so that in the event of a failure of any root node, the transport trees with surviving root nodes can be used to transport traffic from the native tree. The present invention provides for each transport network edge router being independently responsible for selection of a transport tree that the edge router will use to transmit a datastream, while also being capable of receiving packets from any transport tree. Through the use of such configured transport trees along with independent selection of a transport tree, the present invention provides a reduction in the disruption of datastream transmission due to a root node failure. Aspects of the present invention further provide a capacity for root node load balancing by permitting data transmission over any of the configured transport trees on a source-by-source (or edge router-by-edge router) basis.
REFERENCES:
patent: 5473599 (1995-12-01), Li et al.
patent: 5831975 (1998-11-01), Chen et al.
patent: 6463062 (2002-10-01), Buyukkoc et al.
patent: 6662308 (2003-12-01), Baroni et al.
patent: 6671819 (2003-12-01), Passman et al.
patent: 6996108 (2006-02-01), Budhraja
patent: 7117273 (2006-10-01), O'Toole et al.
patent: 7139928 (2006-11-01), Bhattacharya et al.
patent: 7519056 (2009-04-01), Ishwar et al.
patent: 7545735 (2009-06-01), Shabtay et al.
patent: 2003/0021223 (2003-01-01), Kashyap
patent: 2003/0091049 (2003-05-01), Abe et al.
patent: 2003/0161338 (2003-08-01), Ng et al.
patent: 2004/0006640 (2004-01-01), Inderieden et al.
patent: 2004/0017816 (2004-01-01), Ishwar et al.
patent: 2005/0074003 (2005-04-01), Ball et al.
patent: 2005/0243825 (2005-11-01), Bitar et al.
patent: 2005/0249229 (2005-11-01), Wilkie et al.
patent: 2006/0056384 (2006-03-01), Ishii et al.
patent: 2006/0092940 (2006-05-01), Ansari et al.
patent: 2006/0126496 (2006-06-01), Filsfils et al.
patent: 2006/0164975 (2006-07-01), Filsfils et al.
patent: 2006/0193332 (2006-08-01), Qian et al.
patent: 2006/0215577 (2006-09-01), Guichard et al.
patent: 2006/0280131 (2006-12-01), Rahman et al.
patent: 2007/0177527 (2007-08-01), Bragg et al.
Cisco System , Integrating the Cisco Gigabit Ethernet Switcho Module (CGESM) for HP BladeSystem p-Class into the Cisco Data Center Network Architecture, Rev 3 Mar. 15, 2005.
Callom et al. , A Framework for Multi protocol Label Switching, Nov. 21, 1997.
N. Bhaskar et al., Internet Engineering Task Force, “Bootstrap Router (BSR) Mechanism for PIM,” Internet Engineering Task Force, Oct. 23, 2005, © The Internet Society (2005), pp. 1-40.
D. Estrin, et al., Network Working Group, RFC: 2362, “Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification,” Jun. 1998, pp. 1-66.
Boers Arjen
Lo Alton
Wijnands Ijsbrand
Campbell Stephenson LLP
Cisco Technology Inc.
Duong Duc T
Geld Jonathan N.
Kumar Pankaj
LandOfFree
Root node redundancy for multipoint-to-multipoint transport... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Root node redundancy for multipoint-to-multipoint transport..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Root node redundancy for multipoint-to-multipoint transport... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4197263