Redundant ethernet transmission line system

Details Redundant ethernet transmission line system Redundant ethernet transmission line system

2007-01-09

2007-01-09

Nguyen, Chau (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S392000, C370S401000

Reexamination Certificate

active

10098888

ABSTRACT:
A system is disclosed to switch over redundant Ethernet transmission lines using link status control, as decreasing software intervention required for the transmission and reception of control frames, etc. The system includes Ethernet transmission lines having redundant configuration, first and second transmission equipment being connected through the Ethernet transmission lines. An Ethernet switch provided in the first transmission equipment learns a route configuration from the frames transmitted from the first and the second transmission equipment. Switchover of the active transmission line is performed using the learned information on the route configuration.

REFERENCES:
patent: 5983360 (1999-11-01), Ugajin
patent: 6751191 (2004-06-01), Kanekar et al.
patent: 6941486 (2005-09-01), Kopp et al.
patent: 11-331231 (1999-11-01), None
patent: 2000-4231 (2000-01-01), None
patent: 2000-124907 (2000-04-01), None
“Part 3: Media Access Control (MAC) Bridges”, ANSI/IEEE Std 802.1D, 1998 Edition, pp.cover,iv-vi, & 32-33.

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