Added the resolution to my posting a couple of weeks ago about a VTP pruning problem. I came to the conclusion it was a bug in CatOS. CatOS will quite happily prune the native VLAN of a trunk if it thinks it is not needed. However, in doing so, it can screw up the VTP pruning (or more specifically, grafting) mechanisms for other VLANs. I need to investigate this further to make a more coherent explanation, but I’m sure that it the basis of the problem. Here is me discussing it on NetPro.
