[c-nsp] spanning tree question (again)

Rene Avi c-nsp at nextlayer.at
Wed Jul 20 06:48:47 EDT 2005


Alexander Koch wrote:
> Imagine two switches that are (normally) independent of each
> others running MST, now we do a l2circuit between two routers'
> GE trunks to the switches. If I do QinQ here does it have to
> be MST what my customer does, and will I be transporting their
> BPDUs normally? Customer is doing PVST.

Hi Alex,

for IOS switches (12.2(25)SE++ for 3750, 3560, ..) in a pseudowire
setup you can tunnel BPDUs though QinQ using 'l2protocol-tunnel stp'.

Hope to help,
/Rene

-- 
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