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Chapter 48
Configuring 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 .
To track multiple ports, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface fc8/6
Step 3
switch(config-if)# port-track
interface port-channel 1
Step 4
switch(config-if)# port-track
interface fcip 5
Monitoring Ports in a VSAN
You can optionally configure one VSAN from the set of all operational VSANs on the tracked port with
the linked port by specifying the required VSAN. This level of flexibility provides higher granularity in
tracked ports. In some cases, when a tracked port is a TE port, the set of operational VSANs on the port
can change dynamically without bringing down the operational state of the port. In such cases, the port
VSAN of the linked port can be monitored on the set of operational VSANs on the tracked port.
If you configure this feature, the linked port is up only when the VSAN is up on the tracked port.
The specified VSAN does not have to be the same as the port VSAN of the linked port.
Tip
To monitor a tracked port in a specific VSAN, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface fc8/6
Step 3
switch(config-if)# port-track
interface port-channel 1 vsan 2
switch(config-if)# no port-track
interface port-channel 1 vsan 2
Forceful Shutdown
If a tracked port flaps frequently, then tacking 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.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Purpose
Enters configuration mode.
Configures the specified interface and enters the interface
configuration submode. You can now configure tracked ports.
This link symbolizes the direct link (1) in
Note
Tracks interface fc8/6 with interface port-channel 1. When
port-channel 1 goes down, interface fc8/6 is also brought down.
Note
This link symbolizes the ISL (2) in
Tracks interface fc8/6 with interface fcip 5. When FCIP 5 goes
down, interface fc8/6 is also brought down.
This link symbolizes the ISL (3) in
Note
Purpose
Enters configuration mode.
Configures the specified interface and enters the interface
configuration submode. You can now configure tracked ports.
Enables tracking of the PortChannel in VSAN 2.
Removes the VSAN association for the linked port. The
PortChannel link remains in effect.
Cisco MDS 9000 Family Configuration Guide
Configuring Linked Ports
Figure
48-2.
Figure
48-2.
Figure
48-2.
48-5
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