Multi-device link aggregation

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

Reexamination Certificate

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Details

Other Related Categories

C370S216000

Type

Reexamination Certificate

Status

active

Patent number

06910149

Description

ABSTRACT:
The invention relates to multi-device link aggregation (MDLA). A first MDLA device is connected to a second MDLA device by an MDLA internal link. Each of the interconnected first and second MDLA devices is connected to at least one common link aggregation (LAG) partner device by an aggregated link, respectively. Typically, the first and second MDLA devices exchange protocol data units (PDUs) to detect devices that are connected to both the first and second MDLA devices such that they are able to trick the detected devices into behaving as though the two MDLA devices are a single device. If one of the MDLA devices fails, traffic of the associated aggregated link to the failed MDLA device can be automatically forwarded by the other non-failed MDLA device.

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Jim Kuciel, Link Aggregation with 802.3ad, Network World Nov. 13, 2000, www.itworld.com/Net/1750
wwo1113tech/.
IEEE Std. 802.3, 2000 Edition, Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications, Chapter 43, Link Aggregation, pp. 1215-1278.
Jeff Caruso, Building the Bulletproof Ethernet, Network World, Nov. 22, 1999, www.nwfusion.com/archive/1999/81050_11-22-1999.html.

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