Catalyst 3750G and WLC 440x - Port Channel - Configuration - Best Pactice

Unanswered Question
Aug 15th, 2008

What is the best practice to use when configuring port channel between Catalystr 3750G switch stack and WLC 4402 / 4404 Wireless Lan Controllers:

a) Negotiate to LACP

b) Negotiate to PAgP


c) Hard-code to Port Channel without any negotiation.

Any pointers to any useful links - much appreciated and configuration example as well.

I have this problem too.
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Scott Fella Sat, 08/16/2008 - 05:10

Answer is 'C'... channel-mode on

Configuring Neighbor Devices to Support LAG

The controller's neighbor devices must also be properly configured to support LAG.

•Each neighbor port to which the controller is connected should be configured as follows:

interface GigabitEthernet


channel-group mode on

no shutdown

•The port channel on the neighbor switch should be configured as follows:

interface port-channel


switchport trunk encapsulation dot1q

switchport trunk native vlan

switchport trunk allowed vlan

switchport mode trunk

no shutdown

Here is a link that explains it. Hope this answers your question:

Here is a Best Practice doc:


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