[c-nsp] MSTP issue. Isolation of core switch

[Andrey Teslenko]

Добрый день,

SW-Core is a CISCO 4900M switch

>> Ensure identical MST configuration with name and revsion (textual
identical on all switches helps a lot)

We have not this parameter in configuration because we use only one MSTI
Does it that strongly recommended to enable this options?

We will attempt enable UDLD aggressive, after that i will write about
results if they will be.

Thanks a lot


2013/1/10 <cnsp at marenda.net>

>
> If your sw-core is HP than I would tell you "enable spanning-tree"  it's
> off by default.****
>
> Filter -Y see above****
>
> Wll show spannint-tree tell you that running stp version IS MST ?****
>
> (you can have mst config and pvrstp running,****
>
> Show mst config will shot it even when pvst is active.)****
>
> ** **
>
> So what Switches do you use?****
>
> Ensure identical MST configuration with name and revsion (textual
> identical on all switches helps a lot)****
>
> And that all your switches have STP/MST running.****
>
> Having WAN links with carrier-CPE'S/NT's  ensure sufficient MTU and
> forwarding of BPDU's ****
>
> (and packet with destination-MAC=local-special-MAC-Address)****
>
> Enable UDLD aggressive to find one-way links and disable them.****
>
> ** **
>