Extension of link aggregation protocols over the network

Details Extension of link aggregation protocols over the network Extension of link aggregation protocols over the network

2005-10-18

2005-10-18

Chin, Wellington (Department: 2664)

Multiplex communications

Diagnostic testing

Fault detection

C709S241000

Reexamination Certificate

active

06956824

ABSTRACT:
An extension of a Link Aggregation Protocol (LAP) over the network allows current Ethernet point-to-point LAPs to operate across a Metropolitan Area Network (MAN). A maximum disjoint path algorithm allows selection of a plurality of alternative end-to-end physical routes between two data terminals. These physical routes share a minimum number of nodes and physical links. End-to-end logical links are then formed by a plurality of successive physical links between nodes containing protocol compatible devices, the physical links being selected based on their physical characteristics such as bandwidth and delay. Multiple logical links can be provisioned, without dedicating, between any two data terminals over the network. The logical links provide the virtual point-to-point links that the edge LAP devices require. The extension of LAP/s over the network provides increased availability because a network failure can now be propagated to the edge of the network to allow the edge LAP devices to quickly react to the failure.

REFERENCES:
patent: 5610904 (1997-03-01), Eng et al.
patent: 6167025 (2000-12-01), Hsing et al.
patent: 6501757 (2002-12-01), Kamaraj et al.
The ATM Forum, Technical Committee, Inverse Multi-plexing for ATM (IMA) Specification Version 1.1, AF-PHY-0086.001, Mar. 1999.
“Amendment to Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications—Aggregation of Multiple Link Segments”, IEEE Std 802.3ad-2000, (approved Mar. 30, 2000 IEEE-SA Standards Board), pp. 95-173.

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