Recovering an IRF fabric

When the failed IRF link between two split IRF fabrics is recovered, all member devices in the inactive IRF fabric automatically join the active IRF fabric as subordinate members. The service interfaces that have been shut down by MAD automatically restore their original physical state, as shown in Figure 12.

Figure 12: Recovering the IRF fabric

If the active IRF fabric fails before the IRF link is recovered (see Figure 13), use the mad restore command on the inactive IRF fabric to recover the inactive IRF fabric. The command brings up all service interfaces that were shut down by MAD. After you repair the IRF link, the two parts merge into a unified IRF fabric.

Figure 13: Active IRF fabric fails before the IRF link is recovered

To manually recover an inactive IRF fabric:

Step

Command

1. Enter system view.

system-view

2. Recover the inactive IRF fabric.

mad restore

After the IRF fabric is recovered, all service interfaces that have been shut down by MAD come up automatically.