H3C Technologies H3C S12500 Series Switches - Manual (Page 45)

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Figure 15 Recovering the IRF fabric
If the active IRF fabric has failed, for example, because of device or link failures, before the IRF link is
recovered (see
Figure 16 ), use the mad restore command on the inactive IRF fabric to change its MAD
state to Detect and bring up all physical ports that were shut down by MAD. After you repair the IRF link,
the two parts merge into a unified IRF fabric.
Figure 16 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 ports that have been shut down by MAD come up automatically.
IRF link
recovered
IRF
IP network
IP network
IRF 1
(Active)
IRF 2
(Inactive)
IP network
IP network
Network ports that
have been shut
down
Network ports that
have been shut down