Saturday, January 28, 2012
for vtpete's sake...
vtp is vlan trunking protocol, which really has nothing to do with trunking, or anything else... vtp allows for the creation of a vlan management domain that can be password protected and which assists (cough) the administrator in creating vlans (and only vlans) from a server and distributing them to designated clients throughout the domain... wow
a vtp revision number is the hallmark of the ability to create vlans on clients... a higher number at the server will force the clients to update their vlan.dat files with the freshly minted vlans. however, if the client has a higher revision number, the update will be ignored... a device in transparent mode will not participate in vtp processing...
vtp pruning can be used to avoid unnecessary broadcasts to devices connected to trunks that have the intended vlan, but that do not contain any ports. this is rendered useless by stp which runs an instance for every vlan. the guidance is to manually prune unnecessary vlans manually, and transparent mode switches are yet unaffected...
so much for vtp...
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