Releasing Shared Resources In A Port Group; Disabling Acl Adjacency Sharing For System Image Downgrade - Cisco MDS 9000 Series Configuration Manual

Releasing Shared Resources in a Port Group

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Releasing Shared Resources in a Port Group
When you want to reconfigure the interfaces in a port group on a Generation 2 or Generation 3 module, you
can return the port group to the default configuration to avoid problems with allocating shared resources.
Note
• The interface cannot be a member of a PortChannel.
• Releasing shared resources disrupts traffic on the port. Traffic on other ports in the port group is not
To release the shared resources for a port group, perform these steps:
Step 1
switch# configure t
Enters configuration mode.
Step 2 switch(config)# interface fc 1/1
Selects the interface and enters interface configuration submode.
You can use an interface range to release the resources for all interfaces in a port group.
Tip
Step 3 switch(config-if)# no channel-group
Removes the interface from a PortChannel.
Step 4
switch(config-if)# shutdown
Disables the interface.
Step 5 switch(config-if)# out-of-service
Takes the interface out of service.
Step 6
switch(config-if)# no out-of-service
Makes the interface available for service. Repeat Step 2 through Step 6 for all the interfaces in the port group.

Disabling ACL Adjacency Sharing for System Image Downgrade

Fibre Channel ACL adjacency sharing is enabled by default on the switches with an active Generation 2
switching module as of Cisco MDS SAN-OS Release 3.0(3), and with an active Generation 3 module as of
MDS NX-OS Release 4.1(1). Fibre Channel ACL adjacency sharing improves the performance for zoning
and inter-VSAN routing (IVR) network address translation (NAT). To prevent disruptions when downgrading
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
102
affected.
16 4.0 shared
Configuring Fibre Channel Interfaces