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Contributor II
Posts: 66
Registered: ‎01-25-2013

changing interfaces in port channel

Hi,

 

we have a 7210 controller where currently 1 port channel is configured with 2 x 10 Gbit fibre interfaces.  We want to change that into 2 x 1 GBit utp interfaces.

 

Mixing interfaces of different speed is not supported.  So i thought of retrieving the config, modify, return the new config, and boot from it...

 

Unfortunately, after booting from the new config, the network is no longer working.  And i do not see any error.  When executing 'show running' the command seems to hang...

 

We just moved the lines :

 

lacp timeout short
lacp group 1 mode active

 

from interfaces 2 and 3 to interfaces 0 and 1, which should be sufficiant.

 

interface gigabitethernet 0/0/0
description "GE0/0/0"
trusted
trusted vlan 1-4094

!

interface gigabitethernet 0/0/1
description "GE0/0/1"
trusted
trusted vlan 1-4094

!

interface gigabitethernet 0/0/2
description "GE0/0/2"
trusted
trusted vlan 1-4094
lacp timeout short
lacp group 1 mode active
!

interface gigabitethernet 0/0/3
description "GE0/0/3"
trusted
trusted vlan 1-4094
lacp timeout short
lacp group 1 mode active

 

Anyone having an idea?

Guru Elite
Posts: 20,761
Registered: ‎03-29-2007

Re: changing interfaces in port channel

pnobels,

 

Make sure that new port channel is trusted on the Aruba Controller.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Contributor II
Posts: 66
Registered: ‎01-25-2013

Re: changing interfaces in port channel

Actually, i did not change the port channel config :

 

interface port-channel 1
trusted
trusted vlan 1-4094
switchport mode trunk
switchport trunk native vlan 101
switchport trunk allowed vlan 101-102,208

 

I just changed the interfaces which were in the port-channel.

Guru Elite
Posts: 20,761
Registered: ‎03-29-2007

Re: changing interfaces in port channel

pnobels,

 

If that is an up to date version of the config, it would say what physical interfaces are added under the port channel.   Those interfaces are not in your config.

 

It would say :

 

interface port channel 0

add interface gigabitethernet 0/0

add interface gigabitethernet 0/1

 

Those last two lines are crucial and are missing..



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Contributor II
Posts: 66
Registered: ‎01-25-2013

Re: changing interfaces in port channel

Okay, turned out the Aruba config was correct.  And i had to add vlan 1 to the trunk on the HP switches before the aggregate came online.

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