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VTP vlans

Hello,

I have L3 3550, and L2 2950 switches, L3 is working as a VTP server Mode, and L2 is as VTP client Mode..

How much VLAN i can configure on L3 switches.Maximum VLAN on L3 is almost 1000, can 2950 work as a VTP client mode for these 1000 VLANs, because 2950 has maximum range of 64 VLAN.

2 REPLIES

Re: VTP vlans

HI

I think 2950 works as a VTP client.The switch will be having the capacity of configuring 1000 vlans but as u have mentioned 64 vlan these are the STP instances which are supported but not the vlans.

Thanks

Mahmood

Re: VTP vlans

Hi Mansoor,

Can you confirm if it is 2950 running standard image then it supports only 64 per vlan spanning tree but if it is 2950 running enhance image it will support 250 per vlan spanning tree.

Now when we talk to 64 and 250 vans it does not mean that you cannot create more than 64 vlans it just means that only 64 vlans will be having per vlan spanning tree instance.

2950 as a VTP client will learn all normal-range VLANs, with VLAN IDs 1 to 1005; VLAN IDs greater than 1005 are extended-range VLANs and are not stored in the VLAN database. The switch must be in VTP transparent mode when you create VLAN IDs from 1006 to 4094.

And in this situation when you have more than 64 vlans on switch running standard image it is recommended not to run PVST+ but to confiure MST.

HTH, if yes please rate the post.

Ankur

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