Low latency working VPLS

Details Low latency working VPLS Low latency working VPLS

2005-09-13

2009-11-17

Moore, Jr., Michael J (Department: 2419)

Multiplex communications

Network configuration determination

Using a particular learning algorithm or technique

C370S389000, C370S392000, C370S395540

Reexamination Certificate

active

07619992

ABSTRACT:
A system and method are provided for forwarding packets through a fully meshed communication network when the destination MAC address may not be known. Each network element maintains a mapping of MAC addresses and IP addresses, each MAC address having an associated IP address which indicates to where packets are to be forwarded. If a network element receives a packet but has not yet associated an IP address with the destination MAC address of the packet, then the network element forwards the packet along a tree. If a network element receives a packet and has associated an IP address with the destination MAC address, in other words has learned of the IP address for the MAC address, the network element sends the packet directly to the IP address unless a direct link to the IP address is not available. If a direct link is not available, the network element forwards the packet along the tree. A network element receiving a packet from an attachment circuit encapsulates its own IP address in the message, permitting other network elements to learn of the IP address associated with the source MAC address. The invention provides reliable forwarding of packets to both known and unknown destination MAC addresses, while taking advantage of shortest paths provided by a fully meshed network.

REFERENCES:
patent: 5088090 (1992-02-01), Yacoby
patent: 6603769 (2003-08-01), Thubert et al.
patent: 6631137 (2003-10-01), Lorrain et al.
patent: 6747979 (2004-06-01), Banks et al.
patent: 7126949 (2006-10-01), Tingle et al.
patent: 7339929 (2008-03-01), Zelig et al.
patent: 7463597 (2008-12-01), Kompella
patent: 2005/0213572 (2005-09-01), Huang et al.
patent: 2006/0221950 (2006-10-01), Heer
patent: 2007/0008982 (2007-01-01), Voit et al.
patent: 0 980 167 (2000-02-01), None
(Ying-Dar Lin, et al.), “Brouter: the transparent bridge with shortest path in interconnected LANs”, Oct. 14, 1991, pp. 175-183.
(Seifert W. M.), “Integratred routing (and bridging)”, Oct. 10, 1989, pp. 270-277.
(Perlman R.), “Interconnections: Bridges and Routers, Transparent Bridges” Interconnections: Bridges and Routers, Reading, Addison Wesley, 1992, pp. 43-97.
(Perlman R.), “Interconnections: Bridges and Routers, Source Routing Bridges” Interconnections Bridges and Routers, Reading Addison Wesley, 1992, pp. 99-120.
(Perlman R.) “Interconnections: Bridges and Routers, To Route or to Bridge: Is That the Question?”, Reading Addiston Wesley, 1992, pp. 359-367.
Perlman, R., et al., RBridges: Transparent Routing, Network Working Group, Aug. 2005.

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