[c-nsp] Weird problem with 2960S and desktop switch

[Richard Clayton]

By higher priority did you mean lower bridge priority or higher bridge
priority?


On 10 January 2014 14:14, Garry <gkg at gmx.de> wrote:

> Just a followup on this problem ... I was on site, and it turns out the
> desktop switch indeed tried to take over as root bridge of the STP.
> Anyway, even when filtering the BPDUs on the incoming port, the main
> switch still ceased doing any network forwarding, not sure what was
> going on exactly. Anyway, replacing the switch with an identical one
> (apart from not knowing what's configured on it) fixed the problem for
> whatever reason. Weird thing about the root bridge is, the existing main
> switch already used the higher priority, so even considering lower MAC
> address, the main switch should have remained being the root bridge, as
> the desktop switch was elected with default priority ...
> We will look into the config of the desktop switch in our lab, possibly
> finding out what is wrong here ... for now the customer site is at least
> working as intended ...
>
> Tnx to all who replied with their thoughts and ideas ...
>
> -garry
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