troubleshooting Question

Bringing in new switch to VTP environment

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kam_uk asked on
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Hi All

We have four Cisco switches - 2960's, one 3550, and 3 VLAN's. The 3550 is the VTP Server, others are clients.

Our VTP domain is london
VTP Revision number is x

All is working fine.

We'd like to plug a new switch into the network. As I understand it, new switches are configured to Server mode by default, and seeing as it's a brand new switch it shouldn't have any info on it, nor will the revision number of any info be higher than x. Question is, do I configure the VTP domain, then set it as a client *before* plugging into the network or after?

Secondly, what is this switch was used by use previously, left on the shelf, and now we want to use it again. Is there a command to erase the VTP database?

Basically, what I don't want to happen is any scenario where we plug a new switch in (either used or new) and it overwrites out existing VLAN databases. Is there a method of ensuring this doesn't happen?

Les Moore
Systems Architect
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