Port Fast, BPDU and HyperV
Posted on 2014-01-20
I'm having a little trouble understanding portfast, bpdu guard, smart ports and when to use them
I am also running into problems whilst enabling smartports and using HyperV (2012 R2).
Should I be plugging our VOIP PBX into a portfast port and do I also need to enable bpdu guard?
Would it be your advice to also set this as a smartport and label it as a switch?
Secondly, what about all our other servers? Should they have portfast enabled and bpdu guard?
Lastly :) - When enabling smartports and selecting a desktop for a port, whenever a Hyper V host server is plugged into that port with a few VM's running on the same NIC (not recommended I know) we seem to be getting constant intermittent network disconnections. So a server will work fine and when the other VM starts that VM will get network connectivity and the first looses network connectivity. Single servers do not have this issue.
I believe it maybe the result of multiple MAC addresses on the same NIC therefore the Cisco switch may be blocking multiple connections? Is there a way to check this on the switches? It's a Cisco 2960 by the way.