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VLAN Trunking/VTP Pruning

We have a 4000 series switch with fiber connections to approx 20 3550 switches that are located in our IDF closets. We have approx 22 VLANs and each closet has its own VLAN. There are a few machines in various closets that are on different VLAN than the closet is using.

In an effort to reduce workload, convergence time, bandwidth, etc; I have edited the allowed vlans for each trunk port - something like this:

Old: set trunk 6/1 on dot1q 1-199

New: set trunk 6/1 on dot1q 1,3,5

Now I think to need issue the "vtp pruning v2" command on the edge switches. Is this the right way to go? Is there anything else I can do to help?

  • Other Network Infrastructure Subjects

Re: VLAN Trunking/VTP Pruning

Make sure you manually prune on the 3550 side also . "switch trunk allowed vlan 1,3,5" . Also make sure your root for each vlan is set on the 4000 . "set spantree root (vlan #) " .

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