I've recently read that, unlike Cisco, BPDUs are not sent on the native/untagged - or any other - vlan.
1. Is this really true?
2. If so, what effect does this have on spanning tree's ability to correctly detect loops?
3. What considerations are there on a medium sized HP Procurve network (20 switches, with separate access + distribution layers) to ensure that spanning tree correctly detects loops?
Basically, I'm looking for a decent explanation on how this difference between Cisco's and HP's implementation of spanning tree, and how I can prevent loops in an HP environment.
(this isn't academic, a recent loop in the network took out all switches and all vlans on the entire network)