Fibre channel address adaptor having data buffer extension...

Details Fibre channel address adaptor having data buffer extension... Fibre channel address adaptor having data buffer extension...

2006-06-27

2006-06-27

Patel, Ajit (Department: 2664)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S413000, C370S392000, C398S057000, C710S003000

Reexamination Certificate

active

07068651

ABSTRACT:
A method and apparatus that recognizes a portion of an address that would be unrecognizable to an intended associated switch or device and manipulates the portion of the address to make it recognizable. The apparatus and method manipulates a discontinuous address to provide the appearance to the associated device, switch or peripheral, that the address is continuous. This provides additional address capacity such that a new address is created within the switch itself for routing data within the switch. All or a portion of the switches in network are preassigned a chassis address, and each chassis also has a specific switch address that is different from the preassigned chassis address. An address adaptor provides translation of addresses and mapping within a switch so that in the event of a port failure, affected frames can be redirected from the failed port by employing the described translation and mapping operations.

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K. Trowell et al., “Introduction to IBM 5/390 Ficon”; IBM Co. International Technical Support Organization, USA XP002197447 retrieved fromt he Internet at 222.redbooks.ibm.com on Apr. 23, 2002.

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