Communications network tap with link fault detector

Details Communications network tap with link fault detector Communications network tap with link fault detector

2005-07-01

2009-02-03

Pham, Chi H (Department: 2616)

Multiplex communications

Diagnostic testing

Fault detection

C370S248000

Reexamination Certificate

active

07486625

ABSTRACT:
A communications network tap with a link fault detector, comprises a first terminal and a second terminal adapted to couple the tap in-line in the network and communicate data packets with network devices. A tap circuit is coupled to the first terminal and second terminal and configured to provide data packets to a monitor terminal. A link fault circuit coupled to the first terminal and second terminal and when a failure is detected in the first terminal, to cause a failure on the second terminal. Advantages of the invention include ensuring the integrity of the network by alerting network devices of fault conditions.

REFERENCES:
patent: 6041037 (2000-03-01), Nishio et al.
patent: 6167025 (2000-12-01), Hsing et al.
patent: 6449247 (2002-09-01), Manzardo et al.
patent: 2001/0040870 (2001-11-01), Ohmori et al.
patent: 2002/0176355 (2002-11-01), Mimms et al.
patent: 2003/0112760 (2003-06-01), Puppa et al.

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