Port channnel error

[mahesh18]

                   Hi all,

I was trying to create port channel on 4507

I config 2 ports as trunk ports and ran this command

channel-group 10 mode active and got the error below

Command rejected (Port-channel10, Gi1/1): Either port is L2 and port-channel is

L3

Command rejected (Port-channel10, Gi1/1): Either port is L2 and port-channel is

L3

Can someone please tell me about this error and how to fix it?

Thnaks

MAhesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

Try these command under each interface:

Switch(config)# interface range fastethernet 5/4 - 5 (Note: Space is mandatory.)

Switch(config-if)# no switchport 

Switch(config-if)# no ip address 

Switch(config-if)# channel-group 1 mode desirable 

Switch(config-if)# end 

config guide:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/channel.html

HTH

[mahesh18]

Hi Reza,

Many thanks again

Regards

MAhesh

[Reza Sharifi]

Hi Mahesh.

What was the issue?

Thanks for the rating

Reza

Sent from Cisco Technical Support iPhone App

[mahesh18]

Hi Reza,

I was trying to create port channel between 3560 and 4507  .

on 3560 i did

int port-channel 10

switchport mode trunk

int gi0/1 and gi0/2

switchport mode trunk

channel-group 10 mode active

&&&&&&&&&&&&&&&&&&&&&&&&&

4507

int gi0/1  and gi0/2

switchport mode trunk

whenever i type command channel-group 10 mode active  it gave me error as i told earlier

as soon as i did

no switchport

no ip address  it worked ok.

now both ports are in portchannel.

So this was the issue.

Seems on 4507 we need to create  either layer 2 or layer 2 port channel.

when i type no switchport then on 4507 the port channel changed to type  layer 3.

Thanks

MAhesh

[Reza Sharifi]

Hi Mahesh,

Thanks for the update!

Reza