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Default Behavior: VTP Mode Server
I understand that the default mode for switches is vtp mode server.
In that case, if two or more switches are connected then who will "listen" to whom?
In that case, if two or more switches are connected then who will "listen" to whom?
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esr0159
Member Posts: 80 ■□□□□□□□□□
it will listen/follow the one with a higher revision numberCCNP R&S | Planning to hit IE R&S or JNCIA or Security path| -
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dppagc
Member Posts: 293
assume both switches are new with same revision number and null domain name.
what happens? -
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Mow
Member Posts: 445 ■■■■□□□□□□
I think it will be based on who gets the first VLAN change, As soon as one of them gets a change, the other one will adopt it. Not 100% sure, though, I'm at work and can't lab it up, which is what I would recommend you do. -
Optionsazaghul
Member Posts: 569 ■■■■□□□□□□
assume both switches are new with same revision number and null domain name.
what happens?
If SW1 makes a change, revision number increments, SW2 receives the change and adopts it (rev=1)
If SW2 then makes a change, revision number increments, SW1 receives the change and adopts it (rev=2)
As both are in mode=server, both are capable of making or adopting changes depending on the revision number received. -
Optionsdppagc
Member Posts: 293
When switches are at their factory default settings, the vtp status is off or is it server?
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OptionsMow
Member Posts: 445 ■■■■□□□□□□
When switches are at their factory default settings, the vtp status is off or is it server?
Server is the default -
Optionsazaghul
Member Posts: 569 ■■■■□□□□□□
Agreed, mode=server is the default, but it doesn't mean Cisco won't change it on new IOS releases in the future (many default settings have changed in the past)...it always pays to check
