Information Aboutforceful Shutdown; Forcefully Shutting Down A Tracked Port - Cisco MDS 9000 Series Configuration Manual

Configuring Port Tracking

Information AboutForceful Shutdown

If a tracked port flaps frequently, then tracking ports using the operational binding feature may cause frequent
topology change. In this case, you may choose to keep the port in the down state until you are able to resolve
the reason for these frequent flaps. Keeping the flapping port in the down state forces the traffic to flow through
the redundant path until the primary tracked port problems are resolved. When the problems are resolved and
the tracked port is back up, you can explicitly enable the interface.
Tip
If you configure this feature, the linked port continues to remain in the shutdown state even after the tracked
port comes back up. You must explicitly remove the forced shut state (by administratively bringing up this
interface) of the linked port once the tracked port is up and stable.

Forcefully Shutting Down a Tracked Port

To forcefully shut down a tracked port, perform these steps:
Step 1 switch# configure terminal
Enters configuration mode.
Step 2 switch(config)# interface fc1/5
Configures the specified interface and enters the interface configuration submode. You can now configure tracked ports.
Step 3
switch(config-if)# port-track force-shut
Forcefully shuts down the tracked port.
switch(config-if)# no port-track force-shut
(Optional) Removes the port shutdown configuration for the tracked port.
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
Information AboutForceful Shutdown
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