VTP V3 and V2

[satya mothukuri]

Hello,

In my network we are running VTP v3 on our core switch.but we have 1 more switch at edge running with v2 in client mode. Both of this switches are in same domain. But the client switch is not receiving VTP info.

Please let me know how to process further.

Regards,

Satya.M 

[Madhukrishnan Gopinathan Nair]

To mu understanding there should not be issue in interoperation between v2 and v3 as once v3 device detects vtp v2 on a link it sends both vtp v2 and v3 messages across it.
 

So could you please ensure all vtp configurations are alike.

Thanks,

Madhu

[satya mothukuri]

I got the answer...

may be useful for others..

For VTP version 1 and version 2, if extended-range VLANs are configured on the switch stack, you cannot change VTP mode to client or server. You receive an error message, and the configuration is not allowed. VTP version 1 and version 2 do not propagate configuration information for extended range VLANs (VLANs 1006 to 4094). You must manually configure these VLANs on each device.

Note For VTP version 1 and 2, before you create extended-range VLANs (VLAN IDs 1006 to 4094), you must set VTP mode to transparent by using the vtp mode transparent global configuration command. Save this configuration to the startup configuration so that the switch starts in VTP transparent mode. Otherwise, you lose the extended-range VLAN configuration if the switch resets and boots up in VTP server mode (the default).

•VTP version 3 supports extended-range VLANs. If extended VLANs are configured, you cannot convert from VTP version 3 to VTP version 2.

Regards,

Satya.M