VTP question

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Jun 6th, 2007
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Hi, Guys.

Please advice. If the situation is, that I have several switches using VTP. I am connected to the switch that is in client vtp mode, how can I know who from the switches in the LAN is the VTP server ?



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pciaccio Wed, 06/06/2007 - 05:47
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Within the switch type the command SHOW VTP DOMAIN. This tells you the Updater ID IP address. This is the unit that is the server and passing the VTP updates to you...Good Luck..Please rate...

srue Wed, 06/06/2007 - 06:10
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3550-sw#sh vtp status

VTP Version : 2

Configuration Revision : 154

Maximum VLANs supported locally : 1005

Number of existing VLANs : 23

VTP Operating Mode : Client

VTP Domain Name : VTPDOMAIN

VTP Pruning Mode : Enabled

VTP V2 Mode : Disabled

VTP Traps Generation : Disabled

MD5 digest : 0x5E 0x4B 0xFC 0xC1 0x3E 0xF3 0xBB 0xB6

Configuration last modified by 192.168.1.2 at 4-26-07 14:46:18


glengregory Wed, 06/06/2007 - 20:17
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Hi,


What if no IP in configured in the switches?


Thanks,


Glen


srue Thu, 06/07/2007 - 05:27
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is that how your network is configured, or are you just theorizing?

ariela Sat, 06/09/2007 - 02:53
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Hi,


you'll have something like that:


3550-sw#sh vtp status

VTP Version : 2

Configuration Revision : 154

Maximum VLANs supported locally : 1005

Number of existing VLANs : 23

VTP Operating Mode : Client

VTP Domain Name : VTPDOMAIN

VTP Pruning Mode : Enabled

VTP V2 Mode : Disabled

VTP Traps Generation : Disabled

MD5 digest : 0x5E 0x4B 0xFC 0xC1 0x3E 0xF3 0xBB 0xB6

Configuration last modified by 0.0.0.0 at 4-26-07 14:46:18


So, the best thing, if you don't have a topology design of your network, is to use the CDP to make a discovery step-by-step, till find the VTP server.


That's what we do during a Customer Network Quality Assurance & Health Check.


HTH

Andrea

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