Enabling And Configuring Autocreation; About Manually Configured Channel Groups - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Configuring SAN Port Channels
• An autocreated SAN port channel is not persistent through a reboot. An autocreated SAN port channel
• You can enable or disable the autocreation feature on a per-port basis or for all ports in the switch. When
• If autocreation of channel groups is enabled for an interface, you must first disable autocreation before
Tip When enabling autocreation in any switch in the Cisco Nexus 5000 Series, we recommend that you retain
at least one interconnected port between the switches without any autocreation configuration. If all ports
between two switches are configured with the autocreation feature at the same time, a possible traffic
disruption may occur between these two switches as ports are automatically disabled and reenabled when
they are added to an autocreated SAN port channel.

Enabling and Configuring Autocreation

To configure automatic channel groups, perform this task:
Procedure
Step 1
Step 2
Step 3
Step 4
Example of Configuring Autocreation
The following example configures an automatic channel group:
switch(config)# interface fc2/3
switch(config-if)# 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. 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 channel group autocreation is implicitly disabled for all the member ports.
If you enable persistence, be sure to enable it at both ends of the SAN port channel.
OL-16597-01
can be manually configured to appear the same as a persistent SAN port channel. Once the SAN port
channel is made persistent, the autocreation feature is disabled in all member ports.
this configuration is enabled, the channel group mode is assumed to be active. The default for this task
is disabled.
downgrading to earlier software versions or before configuring the interface in a manually configured
channel group.
Command or Action
switch# configuration terminal
switch(config)# interface type slot/port
switch(config- if)# channel-group auto
switch(config- if)# no channel-group
auto
Purpose
Enters configuration mode.
Enters configuration mode for the specified interface.
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 Nexus 5000 Series Switch CLI Software Configuration Guide
Enabling and Configuring Autocreation
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