Releasing Shared Resources In A Port Group; Enabling The Buffer-To-Buffer State Change Number - HP Cisco MDS 9020 - Fabric Switch Configuration Manual

Configuring Generation 2 Module Interface Shared Resources
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
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fc9/1
fc9/2 (out-of-service)
fc9/3
fc9/4
fc9/5
fc9/6
...

Releasing Shared Resources in a Port Group

When you want to reconfigure the interfaces in a port group on a Generation 2 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
Caution
affected.
To release the shared resources for a port group, 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
Step 6
switch(config-if)# no out-of-service

Enabling the Buffer-to-Buffer State Change Number

The BB_SC_N field (word 1, bits 15-12) specifies the buffer-to-buffer state change (BB_SC) number.
The BB_SC_N field indicates that the sender of the port login (PLOGI), fabric login (FLOGI), or ISLs
(E or TE ports) frame is requesting twice the number of frames specified by BB_SC_N to be sent
between two consecutive BB_SC send primitives, and twice the number of R_RDY primitives to be sent
between two consecutive BB_SC receive primitives.
Cisco MDS 9000 Family CLI Configuration Guide
14-34
Chapter 14 Configuring Generation 2 Switches and Modules
16 4.0 shared
16 4.0 shared
16 4.0 shared
16 4.0 shared
16 4.0 shared
Purpose
Enters configuration mode.
Selects the interface and enters interface
configuration submode.
You can use an interface range to
Tip
release the resources for all interfaces
in a port group.
Removes the interface from a PortChannel.
Disables the interface.
Takes the interface out of service.
Makes the interface available for service.
Repeat Step 2 through
interfaces in the port group.
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Step 6 for all the