About Manually Configured Channel Groups; Converting To Manually Configured Channel Groups; Example F And Tf Portchannel Configurations - Cisco MDS 9000 Series Configuration Manual

Chapter 6 Configuring PortChannels
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
Command
Step 3
switch(config- if)# channel-group auto
switch(config- if)# no channel-group auto

About Manually Configured Channel Groups

A user-configured channel group cannot be converted to an autocreated channel group. However, you
can convert an autocreated channel group to a manual channel group. Once performed, this task is
irreversible. The channel group number does not change, but the member ports operate according to the
properties of the manually configured channel group, and the autocreation of channel group is implicitly
disabled for all member ports.
If you enable persistence, be sure to enable it at both ends of the PortChannel.
Tip

Converting to Manually Configured Channel Groups

You can convert autocreated channel group to a user-configured channel group using the port-channel
channel-group-number persistent EXEC command. If the PortChannel does not exist, this command is
not executed.

Example F and TF PortChannel Configurations

This example shows how to configure F PortChannel in shared mode and bring up the link (not supported
on the MDS 91x4 switches) between F ports on the NPIV core switches and NP ports on the NPV
switches:
Enable the F port trunking and channeling protocol on the MDS core switch.
Step 1
switch(config)# feature fport-channel-trunk
Enable NPIV on the MDS core switch:
Step 2
switch(config)# feature npiv
Create the PortChannel on the MDS core switch:
Step 3
switch(config)# interface port-channel 1
switch(config-if)# switchport mode F
switch(config-if)# channel mode active
switch(config-if)# switchport trunk mode off
switch(config-if)# switchport rate-mode shared
switch(config-if)# exit
Configure the PortChannel member interfaces on the core switch:
Step 4
switch(config)# interface fc2/1-3
switch(config-if)# shut
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Example F and TF PortChannel Configurations
Purpose
Automatically creates the channel group for the
selected interface(s).
Disables the autocreation of channel groups for this
interface, even if the system default configuration
may have autocreation enabled.
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
6-19