Dell PowerConnect Brocade M6505 Brocade 7.1.0 Access Gateway Administrator's G - Page 72

3 Failover policy Example 1 Hosts Host_1 Access Gateway F_1 Host_2 F_2 N_1 Host_3 F_3 N_2 Host_4 F_4 Host_5 F_5 N_3 Host_6 F_6 N_4 Host_7 F_7 Fabric Edge Switch (Switch_A) F_A1 F_A2 Edge Switch (Switch_B) F_B1 Example 2 Hosts Host_1 Host_2 Host_3 Host_4 Host_5 F_B2 Host_6 Host_7 Access Gateway F_1 F_2 N_1 F_3 N_2 F_4 F_5 N_3 F_6 N_4 F_7 Fabric Edge Switch (Switch_A) F_A1 F_A2 Edge Switch (Switch_B) F_B1 F_B2 Host_8 F_8 FIGURE 11 Failover behavior Host_8 F_8 Legend Physical connection Mapped online Failover route online Original mapped route (offline) Adding a preferred secondary N_Port (optional) F_Ports automatically fail over to any available N_Port. Alternatively, you can specify a preferred secondary N_Port in case the primary N_Port fails. If the primary N_Port goes offline, the F_Ports fail over to the preferred secondary N_Port (if it is online), then re-enable. If the secondary N_Port is offline, the F_Ports will disable. Define the preferred secondary N_Ports per F_Port. For example, if two F_Ports are mapped to a primary N_Port, you can define a secondary N_Port for one of those F_Ports and not define a secondary N_Port for the other F_Port. F_Ports must have a primary N_Port mapped before a secondary N_Port can be configured. 1. Connect to the switch and log in using an account assigned to the admin role. 2. Enter the ag --prefset command with the "F_Port1;F_Port2; ..." N_Port options to add the preferred secondary F_Ports to the specified N_Port. The F_Ports must be enclosed in quotation marks and the port numbers must be separated by a semicolon, as shown in the following example. switch:admin> ag --prefset "3;9" 4 Preferred N_Port is set successfully for the F_Port[s] NOTE Preferred mapping is not allowed when Automatic Login Balancing mode is enabled for a port group. All N_Ports are the same when Automatic Login Balancing mode is enabled. 52 Access Gateway Administrator's Guide 53-1002743-01