Upgrade Or Downgrade Scenario; Taking Interfaces Out Of Service - Cisco MDS 9000 Series Configuration Manual

Chapter 3 Configuring Fibre Channel Interfaces
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

Upgrade or Downgrade Scenario

When you are upgrading from a release earlier than Cisco SAN-OS Release 3.1(2), all modules operate
with bandwidth fairness disabled until the next module reload. After the upgrade, any new module that
is inserted has bandwidth fairness enabled.
When you are downgrading to a release earlier than Cisco SAN-OS Release 3.1(2), all modules keep
operating in the same bandwidth fairness configuration prior to the downgrade. After the downgrade,
any new module that is inserted has bandwidth fairness disabled.
After the downgrade, any insertion of a module or module reload will have bandwidth fairness disabled.
Note

Taking Interfaces Out of Service

You can take interfaces out of service on Generation 2 and Generation 3 switching modules. When an
interface is out of service, all the shared resources for the interface are released as well as the
configuration associated with those resources.
The interface must be disabled using a shutdown command before it can be taken out of service.
Note
Taking interfaces out of service releases all the shared resources to ensure that they are available to other
Caution
interfaces. This causes the configuration in the shared resources to revert to default when the interface
is brought back into service. Also, an interface cannot come back into service unless the default shared
resources for the port are available. The operation to free up shared resources from another port is
disruptive.
The interface cannot be a member of a PortChannel.
Note
To take an interface out of service, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# interface fc 1/1
switch(config-if)#
Step 3
switch(config-if)# no channel-group
Step 4
switch(config-if)# shutdown
Step 5
switch(config-if)# out-of-service
Putting an interface into out-of-service will
cause its shared resource configuration to
revert to default
Do you wish to continue(y/n)? [n] y
Use the show port-resources module command to verify the out-of-service configuration for interfaces
on a Generation 2 and Generation 3 switching module.
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Configuring Module Interface Shared Resources
Purpose
Enters configuration mode.
Selects the interface and enters interface
configuration submode.
Removes the interface from a PortChannel.
Disables the interface.
Takes the interface out of service.
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
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