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
10-3
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 10 Troubleshooting PortChannels and Trunking
PortChannel Issues
Common Troubleshooting Commands in the CLI
The following commands may be useful in troubleshooting PortChannel and trunking:
•
show port-channel compatibility-parameters
•
show port-channel summary
•
show port-channel database
•
show port-channel consistency detail
•
show port-channel usage
•
show interface
•
show interface trunk
•
show trunk protocol
PortChannel Issues
This section describes common PortChannel issues and includes the following topics:
•
Cannot Configure a PortChannel, page 10-3
•
Newly Added Interface Does Not Come Online In a PortChannel, page 10-4
Cannot Configure a PortChannel
Symptom
Cannot configure a PortChannel.
Table 10-1
Cannot Configure a PortChannel
Symptom
Possible Cause
Solution
Cannot configure a
PortChannel.
PortChannel autocreation is enabled.
Disable autocreation if you want to manually configure
PortChannels. In Device Manager, select
Interfaces > FC
ALL...,
select the
Other
tab, uncheck the
AutoChannelCreate
check box, and click Apply.
Use the
no channel-group auto
CLI command.