Reset VTP revision number

[Andy White]

Hello,

I have 5 switches in a VTP domain, one switch is the server and the reset are clients.  How can I reset the revision number back to zero?  If I change the domain to something else on the server or set it to transparent it goes to zero, but it I set it back to the server and the original domain name it goes back to the old revision number.  I guess the clients are updating the revision number?

Thanks

[Reza Sharifi]

Hi,

Configuration Revision Number

The configuration revision number is a 32-bit number that indicates the       level of revision for a VTP packet. Each VTP device tracks the VTP       configuration revision number that is assigned to it. Most of the VTP packets       contain the VTP configuration revision number of the sender.

This information is used in order to determine whether the received       information is more recent than the current version. Each time that you make a       VLAN change in a VTP device, the configuration revision is incremented by one. In order to reset the configuration revision of a switch, change the VTP domain       name, and then change the name back to the original name.

more info:

http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml

HTH

[Joseph W. Doherty · Accepted solution]

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Posting

I guess the clients are updating the revision number?

Yes, correct.  Servers and clients "share" the VLAN database.  The real difference between "servers" and "clients" is whether you can configure VLAN changes on the device.

How can I reset the revision number back to zero?

Set all switches to transparent, and then set them all back to their previous server or client mode.

PS:

Changing the domain name, as noted by Reza, on all switches and then back should do the trick too.

[Andy White]

Thanks, yeah I didn't realise you had to change it on all then back again.  Great to know.

[shamax_1983]

Just change the vtp mode to transparent and back to what ever the mode you want it to be.

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