[c-nsp] RSPAN question...

Phil Mayers p.mayers at imperial.ac.uk
Tue Mar 1 10:13:19 EST 2011


On 01/03/11 14:36, Jeff Kell wrote:
> Can you pass an RSPAN vlan through a "vanilla" switch that isn't RSPAN aware?
>
> I know the "source" and "destination" switches for an RSPAN session must obviously be
> RSPAN-aware, but can you pass the RSPAN vlan through a non-participating switch?

If you can disable learning, yes (the src/dst MACs are unchanged, so you 
need to disable learning).

Some IOS have:

vlan 123
   remote-span

...or:

no mac-address-table learning vlan 123


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