US 7,474,652 B2
Caching remote switch information in a fibre channel switch
Lalit D. Pathak, San Jose, Calif. (US); Raymond C. Tsai, Cupertino, Calif. (US); and Richard L. Hammons, Hollister, Calif. (US)
Assigned to Brocade Communications Systems, Inc., San Jose, Calif. (US)
Filed on Jul. 30, 2002, as Appl. No. 10/208,427.
Prior Publication US 2004/0022254 A1, Feb. 05, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/28 (2006.01)
U.S. Cl. 370—389  [370/386; 370/254; 711/100; 709/220] 25 Claims
OG exemplary drawing
 
1. A Fibre Channel (FC) fabric that comprises:
a first FC switch configured to directly couple with at least one FC node device, wherein the first FC switch executes a name server that maintains a first database of information about FC node devices directly coupled to the first FC switch; and
a second FC switch coupled to the first FC switch and configured to directly couple with at least one FC node device, wherein the second FC switch is configured to execute a name server that maintains a second database of information about FC node devices directly coupled to the second FC switch,
wherein the second FC switch is further configured to execute a cache manager that maintains a third database of information about FC node devices directly coupled to the first FC switch.