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US007676609B2

(12) United States Patent

Dugan et al.

(io) Patent No.: (45) Date of Patent:

US 7,676,609 B2 *Mar. 9, 2010

(54) METHOD AND APPARATUS FOR

NON-DISRUPTIVELY UNASSIGNING AN
ACTIVE ADDRESS IN A FABRIC

(75) Inventors: Robert J. Dugan, Hyde Park, NY (US);

Giles R. Frazier, Austin, TX (US)

(73) Assignee: International Business Machines Corporation, Armonk, NY (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

This patent is subject to a terminal disclaimer.

(21) Appl.No.: 12/132,116

(22) Filed: Jun. 3, 2008

(65) Prior Publication Data

US 2008/0244125 Al Oct. 2, 2008

Related U.S. Application Data

(60) Continuation of application No. 11/452,833, filed on Jun. 13, 2006, now Pat. No. 7,472,209, which is a division of application No. 10/043,489, filed on Jan. 11, 2002, now Pat. No. 7,085,860.

(51) Int. CI.

G06F 3/00 (2006.01)

(52) U.S. CI 710/36; 710/5; 710/19

(58) Field of Classification Search 710/5,

710/19, 36

See application file for complete search history.

(56) References Cited

U.S. PATENT DOCUMENTS

5,276,813 A 1/1994 Elliott et al.

5,420,988 A 5/1995 Elliott

5,467,344 A 11/1995 Solomon et al.

5,522,046 A 5/1996 McMillen et al.

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