Wrap path for communication ring access control

Details Wrap path for communication ring access control Wrap path for communication ring access control

2006-08-08

2006-08-08

Pezzlo, John (Department: 2662)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S235000, C370S244000, C709S221000, C709S239000

Reexamination Certificate

active

07088675

ABSTRACT:
Ring access control circuitry comprises a receive interface, a host interface coupled to the receive interface, a mate interface coupled to the host interface, a flow control agent coupled to the mate interface, a transmit interface coupled to the flow control agent, and a wrap path coupled from between the flow control agent and the transmit interface to between the receive interface and the host interface. A wrap is initiated over the wrap path in response to a link failure. The ring being controlled could be a resilient packet ring.

REFERENCES:
patent: 6112249 (2000-08-01), Bader et al.
patent: 6697373 (2004-02-01), Sandstrom
patent: 6892329 (2005-05-01), Bruckman
patent: 2002/0118700 (2002-08-01), Bruckman
patent: 2003/0112829 (2003-06-01), Sridhar
patent: 2003/0123393 (2003-07-01), Feuerstraeter et al.
Conexant SRP—MAC Overview 25 pages.
Tsiang, D., “The Cisco SRP MAC Layer Protocol,” Cisco Systems, Aug. 2000, pp. 1-46.
CX29950, Ring Processing Unit (RPU) Data Sheet, 500224A, Oct. 25, 2001.

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