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New Member

Cannot create extended range vlan

hello guys,

Could you help me to fix this issue;

Problem Description

I get this message when I tried to create an extended range vlan.

Switch: 2960

IOS:

12.2.53

spanning-tree extend system-id  is configured

VTP mode transparent is configured as well.

These  are  configured, and work find

2801 TEST2 active
2807 TEST3          active
2857 TEST4         active
3326 test5       active


VTP Status:

#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                       : 68bd.ab2f.b100
Configuration last modified by 10.231.71.241 at 0-0-00 00:00:00

Feature VLAN:
--------------
VTP Operating Mode                : Transparent
Maximum VLANs supported locally   : 255
Number of existing VLANs          : 29
Configuration Revision            : 0
MD5 digest                        : 0xE5 0xED 0xE2 0xB2 0x96 0x21 0x2A 0x24
                                     0xBC 0xAD 0xF5 0x27 0x95 0xF6 0x93 0x0A

-----------------------------------------------------------------

ERROS:

SW1(config)#vlan 2856
SW1(config-vlan)#name test1
SW1(config-vlan)#exit
% Failed to create VLANs 2856
VLAN(s) not available in Port Manager.
%Failed to commit extended VLAN(s) changes.

SW1(config)#

thank you for helping me.

Alioune

1 ACCEPTED SOLUTION

Accepted Solutions

Cannot create extended range vlan

Is Vlan2856 the first extended Vlan you have tried to create on that switch or do you have existing extended ones?

13 REPLIES

Cannot create extended range vlan

Is Vlan2856 the first extended Vlan you have tried to create on that switch or do you have existing extended ones?

New Member

Cannot create extended range vlan

Hello Devils,

thank you for asking, Vlan2856 is the last, We already had  vlans2801,2807,2857, and 3326.

Cisco Employee

Cannot create extended range vlan

You are running VTP version 1. Please change the VTP version to 3 and you should be able to configure the xtended range vlans.

Cheers,

-amit singh

New Member

Re: Cannot create extended range vlan

hello Amit,

The others switches run vtp version1, what should be the consequence if We configure version 3. I mean some switches are  run version1, and others not?

Cisco Employee

Cannot create extended range vlan

You need to enable VTP V3 on all the switches. If one of your switch is VTPV1 capable only, it will not able to inter-operate with VTP V3.

Please look at these guidelines for 2960.

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swvtp.html#wp1316856

Cheers,

-amit singh

Re: Cannot create extended range vlan

I think this only applies when using VTP in a Client/Sever mode.

Support for extended range VLAN (VLANs 1006 to 4094) database propagation

He is using transparent so there is not database propagation.

My 3750x uses VTP v1 in Transparent mode and I can create extended Vlans.

Cisco Employee

Cannot create extended range vlan

Oh yes, I over looked it. My bad. If I am in trabnsparent mode, i should bve avle to do it any VTP version.

Re: Cannot create extended range vlan

Did you create those vlans (2801,2807,2857, and 3326) on this switch whilst in transparent mode?

You are trying to create Vlan2856, have you tried a different Vlan ID in the extended range?

Re: Cannot create extended range vlan

Look at 'show vlan internal usage'. You could have a conflict with an existing vlan. Internal vlans are used by routed ports.

Sent from Cisco Technical Support iPhone App

HTH, John *** Please rate all useful posts ***
New Member

Re: Cannot create extended range vlan

Hello john,

I asked the outputs of
SW1#sh vlan internal usage

VLAN Usage
---- --------------------

SW1#

there is nothing.

Cisco Employee

Cannot create extended range vlan

I had a look around and all the symptoms on this is pointing to a broken vlan database. Is this a production switch? Can you try deleting the vlan.dat and try creating it again. Check if that helps.

Cheers,

-amit singh

New Member

Re: Cannot create extended range vlan

It's in production, I will try  ,and let you know.

Re: Cannot create extended range vlan

Are you running LAN lite image?

Note Up to 64 VLANs are supported when the switch is running the LAN Lite image.


Sent from Cisco Technical Support iPhone App

HTH, John *** Please rate all useful posts ***
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