[c-nsp] What causes mac table relearning?

[Garrett Skjelstad]

Yes, TCN is where I would start, MST is famous for this as well.

On Wed, Oct 17, 2018, 14:32 Mike <mike-cisconsplist at tiedyenetworks.com>
wrote:

> Hi,
>
>
>      I have a network consisting of 3560g switches and I do not run
> spanning tree in this network. I have noticed a symptom when a vlan
> trunk interface goes down/up,  all mac addresses in the vlans carried by
> that trunk also seem to be cleared at the same time. Im not just talking
> the mac addresses on the port itself; rather, across the other switches
> themselves , even for mac addresses that have no connection to the port
> itself they just happen to be in one of the vlans. If I have missed
> something fundamental I'd love to know but I am not aware of any lan
> switching rules that would require this behavior.
>
>
> Mike-
>
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