[c-nsp] VLAN ID limit?

Alex Balashov abalashov at evaristesys.com
Wed Aug 20 00:54:21 EDT 2008


Damn.

Are you absolutely sure there is no IOS upgrade for the existing switch 
that can fix this?

Chris Phillips wrote:

> Alex,
> 
> You don't get around it on the 2924.  You will need to upgrade to the 
> 2950G-24-EI.
> 
> They're not much more than the 2924.
> 
> Good luck.
> 
> Alex Balashov wrote:
>> For some reason, my Catalyst 2900 series (WS-C2924-XL) does not like 
>> VLAN IDs higher than 1005:
>>
>>
>> sw01(config)#switchport trunk allowed vlan add 1202
>> Command rejected: Bad VLAN list - character #5 (EOL) delimits a VLAN
>> number (1202) out of the range 1 to 1005.
>>
>> This is with a trunking interface:
>>
>> interface FastEthernet0/1
>>  duplex full
>>  speed 100
>>  switchport trunk encapsulation dot1q
>>  switchport trunk allowed vlan 1,3,100,1002-1005
>>  switchport mode trunk
>>
>> IOS is 12.0(5)WC8 (C2900XL-C3H2S-M).
>>
>> I'm pretty sure this has already been asked a thousand times, but how 
>> do I get around this issue so I can get support for the extended VLAN 
>> IDs up to 4096?
>>


-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
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