Fast link down

Details Fast link down Fast link down

2008-05-16

2010-11-16

Ngo, Ricky (Department: 2464)

Multiplex communications

Fault recovery

C370S252000

Reexamination Certificate

active

07835269

ABSTRACT:
Apparatus having corresponding methods and computer programs comprise a physical layer controller adapted to start a first timer for a physical link comprising a receive physical link; and a physical link monitor comprising a monitor module adapted to determine a local receiver status for the receive physical link, and a controller adapted to indicate a link status is OK for the physical link when the local receiver status is OK, wherein the controller comprises a speed up mode circuit to indicate the link status is FAIL for the physical link when the local receiver status is not OK and a speed up mode is enabled, regardless of the status of the first timer.

REFERENCES:
patent: 6215764 (2001-04-01), Wey et al.
patent: 2002/0083231 (2002-06-01), Chiang
patent: 2007/0047525 (2007-03-01), He
patent: 2007/0248058 (2007-10-01), Fajardo et al.
IEEE Std 802.3-2002® (Revision of IEEE Std 802.3®, 2000 Edition) 802.3®; IEEE Standard for Information technology- Telecommunications and information exchange between systems- Local and metropolitan area networks- Specific requirements, Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications, IEEE Computer Society; Sponsored by the LAN/MAN Standards Committee, Mar. 8, 2002, pp. i-xxv and 1-551; Section Two: This section includes Clauses 21 through 33 and Annexes 22A through 32A, pp. 1-581; Section Three: This section includse Clauses 34 through 43 and Annexes 36A through 43C, pp. 1-379.

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