Method and apparatus for extended addressing in a fiber...

Details Method and apparatus for extended addressing in a fiber... Method and apparatus for extended addressing in a fiber...

2007-03-30

2010-12-28

Wu, Daniel (Department: 2612)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S230000

Reexamination Certificate

active

07860103

ABSTRACT:
Methods and apparatus for increasing the number of addressable node ports within one arbitrated loop are provided in a way that allows all node ports be able to participate in loop operations. The method also adds destination filtering based on the source address to determine which of the similarly addressed node ports a message is destined for. A unique arbitrated loop physical address is acquired by a connectivity device. A shared arbitrated loop physical address is acquired by each drive in a set of drives attached to the connectivity device. The shared arbitrated loop physical address is part of a set of shared arbitrated loop physical addresses that are shared among a plurality of connectivity devices. The drive can be uniquely addressed using a pairing of the shared loop physical address associated with the drive and the unique arbitrated loop physical address associated with the selected connectivity device.

REFERENCES:
patent: 5751715 (1998-05-01), Chan et al.
patent: 2002/0196773 (2002-12-01), Berman
patent: 2003/0012204 (2003-01-01), Czeiger et al.
patent: 2003/0108050 (2003-06-01), Black et al.
patent: 2006/0072454 (2006-04-01), Ain et al.

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