ROUTE CALCULATING AFTER SWITCHING OCCURS FROM A PRIMARY MAIN CONTROL BOARD TO A STANDBY MAIN CONTROL BOARD

摘要

Calculating routing after switching occurs from a primary main control board to a standby main control board in a Fiber Channel (FC) switch includes receiving neighbor Link State Records (LSRs) sent by the primary main control board and backing up the neighbor LSRs on the standby main control board. The standby main control board is triggered to be promoted to the primary main control board, and an adjacency relationship is established with neighbors according to the backed up neighbor LSRs. LSRs of the switch are generated based on available ports on the switch and the neighbors, and a message is sent for maintaining the adjacency relationship to the neighbors with which the adjacency relationship has been established. Routing is calculated based on the neighbor LSRs and the LSRs of the switch