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
57-5
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 57 Configuring Port Tracking
Port Tracking
About 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.
Tip
The specified VSAN does not have to be the same as the port VSAN of the linked port.
Monitoring Ports in a VSAN
To monitor a tracked port in a specific VSAN, follow these steps:
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.
Step 3
switch(config-if)#
port-track
interface port-channel 1
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
Figure 57-2
.
Step 4
switch(config-if)#
port-track
interface fcip 5
Tracks interface fc8/6 with interface fcip 5. When FCIP 5 goes
down, interface fc8/6 is also brought down.
Note
This link symbolizes the ISL (3) in
Figure 57-2
.
Command
Purpose
Command
Purpose
Step 1
switch#
config t
Enters configuration mode.
Step 2
switch(config)#
interface fc8/6
Configures the specified interface and enters the interface
configuration submode. You can now configure tracked ports.
Step 3
switch(config-if)#
port-track
interface port-channel 1 vsan 2
Enables tracking of the PortChannel in VSAN 2.
switch(config-if)#
no
port-track
interface port-channel 1 vsan 2
Removes the VSAN association for the linked port. The
PortChannel link remains in effect.