| US 7,453,802 B2 | ||
| Method and apparatus for detecting and removing orphaned primitives in a fibre channel network | ||
| John M Fike, Austin, Tex. (US); and William J. Wen, Austin, Tex. (US) | ||
| Assigned to QLOGIC, Corporation, Aliso Viejo, Calif. (US) | ||
| Filed on Jul. 12, 2004, as Appl. No. 10/889,259. | ||
| Claims priority of provisional application 60/492346, filed on Aug. 04, 2003. | ||
| Claims priority of provisional application 60/490747, filed on Jul. 29, 2003. | ||
| Claims priority of provisional application 60/487876, filed on Jul. 16, 2003. | ||
| Claims priority of provisional application 60/487887, filed on Jul. 16, 2003. | ||
| Claims priority of provisional application 60/487875, filed on Jul. 16, 2003. | ||
| Claims priority of provisional application 60/487667, filed on Jul. 16, 2003. | ||
| Claims priority of provisional application 60/487665, filed on Jul. 16, 2003. | ||
| Claims priority of provisional application 60/487873, filed on Jul. 16, 2003. | ||
| Prior Publication US 2005/0013258 A1, Jan. 20, 2005 | ||
| Int. Cl. H04L 12/42 (2006.01) | ||
| U.S. Cl. 370—230 [370/235] | 17 Claims |
| 1. A method for detecting orphaned close (CLS) primitives in a fibre channel network having a fibre channel switch element
coupled to an arbitrated loop, the method comprising:
sending an open (OPN) primitive from a switch element port to its own arbitrated loop physical address (AL_PA) to open a connection
with itself; and
determining if a CLS primitive is received by the switch element port within a loop latency period; and
if a CLS primitive is received within the latency period, then the CLS primitive is classified as an orphan; wherein
the latency period is either set at a desired value or determined.
|