VTP & Link Failure

[amcgrory]

I have two inter switch links which can trunk a number of VLANS. With VTP pruning enabled on the network some of these are now pruned. If one of the links fail, will these VLAN move from a pruned to a not pruned state on my remaining link ?

[gpulos]

if you have pruninng setup to a specific switch and one of the trunks to that switch dies, the other trunk remains up and will continue to prun vlans.

see the following link for more info:

http://www.cisco.com/en/US/products/hw/switches/ps679/products_configuration_guide_chapter09186a008007f7e7.html#1019917

[Francois Tallet]

Yes, and that's the whole benefit of letting a protocol like VTP pruning or GVRP handling the pruning of your tree: it is dynamic. The alternative is to manually remove vlans from the allowed list of your trunks, but you lose redundancy in that case.

Regards,

Francois