Reply
Contributor II

VLAN going down

Hello

We have a M3 module with AOS 5.0.3.3 with VLAN pooling deployed. For some unknow reason the VLANs goes down when there are no users connected on the VLAN. When all the VLANs interfaces are down we lose the port.

The syslog print this messages

fpapps: <208008> |fpapps| No change in the Vlan Interface 3022 state UP Vlan Interface has tunnels configured
fpapps: <208007> |fpapps| Vlan interface 3026 state is DOWN
fpapps: <208008> |fpapps| No change in the Vlan Interface 3023 state UP Vlan Interface has tunnels configured

Sapnning Tree is disble at controller and at level port. The controller have 2 connections to the same switch one contains VLans in trunk mode and other another Vlan in acess mode. Also we have configured the Management Port with another VLAN in acces mode plugged to the same switch. We don't lose the management port.

The controller it's configured on local-master basis

Any advice will be greatly appreciated
Guru Elite

Re: VLAN going down

The only thing that comes to mind:

If a VLAN is not assigned to a physical port (trunk or access), when users are not in that VLAN it is down. Type "show vlan status" to double-check what vlans are assigned to what ports. To keep that VLAN up without it being assigned to a physical port, use "operstate up" under the VLAN interface:

config t
interface vlan 3022
operstate up


Colin Joseph
Aruba Customer Engineering

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

Contributor II

Re: VLAN going down

Yep i've already done the operstate up but it's really strange, because these Vlan are Layer 3 Vlan and assigned to a port in trunk mode. The Vlans start to go down and when the last one goes down we lose the interface and the connection. From the switch side we see a changed port status to down. Really wierd.

The only thing out of normal we are using if you want to say that it's VLAN polling.

Any idea on what it's causing the Vlans to go down?

Regards
Guru Elite

Re: VLAN going down

Please type "show log network 100" to see why it says that the interface is going down on the Aruba controller side. In addition, you should examine the log on the switch infrastructure side to see why it is going down.


Colin Joseph
Aruba Customer Engineering

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

Contributor II

Re: VLAN going down

Will look on that, but for now operstate up seems to do his magic and we pass the weekend without problems.

Thanks for your time Collin
Search Airheads
cancel
Showing results for 
Search instead for 
Did you mean: