[c-nsp] vlan limit hit...but havent?

[CiscoNSP_list CiscoNSP_list]

Thanks - Yes, all our trunk ports only allow certain vlans.



> From: Robert at CustodianDC.com
> To: cisconsp_list at hotmail.com; cisco-nsp at puck.nether.net
> Date: Sat, 17 Nov 2012 09:44:44 +0000
> Subject: RE: [c-nsp] vlan limit hit...but havent?
> 
> Hi - also check all your trunk ports and make sure you are specifying only active/valid VLANs individually, by using:
> 
> switchport trunk allowed vlan 1,2,101,102,etc.
> 
> If there are unrestricted trunk ports then again you may have resources tied up for VLANs which have since been removed but it's just not showing them to you.
> 
> Cheers,
> 
> 
> Robert Williams
> Backline / Operations Team
> Custodian DataCentre
> tel: +44 (0)1622 230382
> email: Robert at CustodianDC.com
> http://www.custodiandc.com/disclaimer.txt
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Robert Williams
> Sent: 17 November 2012 08:39
> To: 'CiscoNSP_list CiscoNSP_list'; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] vlan limit hit...but havent?
> 
> Hi,
> 
> Just an idea, but have you tried "vtp pruning" in the config? If it is a bug then maybe it's a result of not clearing VLANs which were previously present but have been removed or re-numbered. Perhaps they are stuck in the VTP DB/cache pending a reload or similar event.
> 
> I know you are in transparent mode, but interestingly we have some 2960G units which show pruning as 'enabled' even though VTP is off globally:
> 
> #sh run | inc vtp
> vtp mode off
> 
> #sh vtp stat
> VTP Version capable             : 1 to 3
> VTP version running             : 3
> VTP Domain Name                 :
> VTP Pruning Mode                : Enabled
> VTP Traps Generation            : Disabled
> Device ID                       : x.x.x
> 
> Feature VLAN:
> --------------
> VTP Operating Mode                : Off
> Number of existing VLANs          : 42
> Number of existing extended VLANs : 0
> Maximum VLANs supported locally   : 255
> 
> Ours are running 15.0(2)
> 
> Maybe you can also check:
> 
>  sh vlan br | count act
>  sh vlan | count enet
> 
> Just out of curiosity, cheers!
> 
> 
> Robert Williams
> Backline / Operations Team
> Custodian DataCentre
> tel: +44 (0)1622 230382
> email: Robert at CustodianDC.com
> http://www.custodiandc.com/disclaimer.txt
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of CiscoNSP_list CiscoNSP_list
> Sent: 17 November 2012 06:32
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] vlan limit hit...but havent?
> 
> 
> 
> Cisco 2960G - 255 vlans allowed, currently have 220 configured, but cant create any more?
> 
> #sh vtp status
> VTP Version capable             : 1 to 3
> VTP version running             : 1
> VTP Domain Name                 :
> VTP Pruning Mode                : Disabled
> VTP Traps Generation            : Disabled
> Device ID                       : 0024.c3f0.9100
> Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
> 
> 
> Feature VLAN:
> --------------
> VTP Operating Mode                : Transparent
> Maximum VLANs supported locally   : 255
> Number of existing VLANs          : 220
> 
> 
> Try and create new vlan:
> 
> (config)#vlan 300
> (config-vlan)#name test
> (config-vlan)#exi
> Proposed configuration exceeds the limit of 255 VLANs that can be supported on this platform. Reduce the number of VLANs proposed to be within this limit.APPLY VLAN changes failed.
> 
> Anyone seen this before? (I've upgraded IOS to latest, but still have the issue?)
> 
> 
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