Cannot Create Port Channel; Newly Added Interface Does Not Come Online In A Port Channel; Forcing Port Channel Characteristics Onto An Interface - Cisco Nexus 1000V Troubleshooting Manual

Cannot Create Port Channel

Cannot Create Port Channel

Symptom Possible Cause
Cannot create a port The maximum number of port channels
channel. has been reached for the system.

Newly Added Interface Does Not Come Online In a Port Channel

Symptom Possible Cause
Newly added The port channel mode is on.
interface does not
come online in a port
channel.
Interface parameters are not compatible
with those of the existing port.

Forcing Port Channel Characteristics onto an Interface

You can force the physical interface to take on the characteristics of the port channel. Use this procedure
only if you want to configure the port channel manually and not through the port profile.
BEFORE YOUR BEGIN
•
•
DETAILED STEPS
Enter the interface configuration mode.
Step 1
interface ethernet slot/port
You are placed into interface configuration mode.
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
11-4
Log in to the CLI in configuration mode.
Make sure that the forced interface has same speed, duplex, and flow control settings as the channel
group.
Solution
Enter the show port-channel summary command to
verify the number of port channels already configured. You
can have a maximum of 256 port channels on the Cisco
Nexus 1000V.
Solution
Make sure that you have the port channel configuration
1.
in the port profile (port group) used by that interface.
Check if a port channel is already present on the
2.
module that is using the same port profile. If there is,
check the running configuration on the port channel
and the newly added interface. The interface does not
come up if the port channel configurations are
different.
If the port channel configuration is different, apply the
3.
difference on the newly added interface. Remove the
port, and then add it back.
See the "Forcing Port Channel Characteristics onto an
Interface" section on page
interface to take on the parameters of the port channel. Use
this procedure only if you want to configure the port
channel manually and not through the port profile.
Chapter 11 Port Channels and Trunking
11-4, to force the physical
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