[c-nsp] MST issues

Karl Gaissmaier karl.gaissmaier at uni-ulm.de
Wed Oct 22 07:20:43 EDT 2008


Hi Mateusz,

Hashiru Aminu -X (haminu - SSAI at Cisco) schrieb:
> Hi Mateusz,
> 
> Thank you for the response, and I am running MST without boundary but find that the two
> devices that are on a point to point link are all claiming to be the
> root bridge and the p2p link between them on one of them is shown as "Mstr"
> though if should be designated
> or root as the case may be. And there is no PVST enabled on the switches.
> What do you guys think may be the problem.

seems that there is at least one device sending BPDUs with VLAN tags
and this flags PVST.

Are you sure, that VLAN1 isn't tagged on these links?

I had a similar problem 2 years ago.


Regards
	Charly


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