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

[Robert Williams]

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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