Chapter 67 Configuring Port Tracking; About Port Tracking - HP Cisco MDS 9216 - Fabric Switch Configuration Manual

Port Tracking
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
The port tracking feature monitors and detects failures that cause topology changes and brings down the
links connecting the attached devices. When you enable this feature and explicitly configure the linked
and tracked ports, the Cisco SAN-OS software monitors the tracked ports and alters the operational state
of the linked ports on detecting a link state change.
The following terms are used in this chapter.
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Port Tracking
Before configuring port tracking, consider the following guidelines:
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This section includes the following topics:
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About Port Tracking

Port tracking has the following features:
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Cisco MDS 9000 Family CLI Configuration Guide
67-2
Tracked ports—A port whose operational state is continuously monitored. The operational state of
the tracked port is used to alter the operational state of one or more ports. Fibre Channel, VSAN,
PortChannel, FCIP, or a Gigabit Ethernet port can be tracked. Generally, ports in E and TE port
modes can also be Fx ports.
Linked ports—A port whose operational state is altered based on the operational state of the tracked
ports. Only a Fibre Channel port can be linked.
Verify that the tracked ports and the linked ports are on the same Cisco MDS switch.
Be aware that the linked port is automatically brought down when the tracked port goes down.
Do not track a linked port back to itself (for example, Port fc1/2 to Port fc2/5 and back to Port fc1/2)
to avoid recursive dependency.
About Port Tracking, page 67-2
Enabling Port Tracking, page 67-3
About Configuring Linked Ports, page 67-3
Operationally Binding a Tracked Port, page 67-3
About Tracking Multiple Ports, page 67-5
Tracking Multiple Ports, page 67-5
About Monitoring Ports in a VSAN, page 67-6
Monitoring Ports in a VSAN, page 67-6
About Forceful Shutdown, page 67-6
Forcefully Shutting Down a Tracked Port, page 67-6
The application brings the linked port down when the tracked port goes down. When the tracked port
recovers from the failure and comes back up again, the tracked port is also brought up automatically
(unless otherwise configured).
You can forcefully continue to keep the linked port down, even though the tracked port comes back
up. In this case, you must explicitly bring the port up when required.
Chapter 67 Configuring Port Tracking
OL-16184-01, Cisco MDS SAN-OS Release 3.x