[c-nsp] Splitting an existing DECNET area using an IP backbone

[Tim Franklin]

Hi Kevin,

> Am I missing the point? does the switch not build a MAC 
> address list for
> the tunnel interface for the other end of the tunnel as it would for
> another real interface on the switch allowing non routable 
> protocols to
> believe that the whole tunnel in effect is a single switch 
> with 2 ports ?

Not by default, no.  The tunnel is another layer-3 interface, like the SVI /
Vlan123 interfaces (or a regular router interface) - not a layer-2
interface, like a switchport.

Your might be able to get somewhere by putting both the tunnel interface and
the vlan interface into a bridge group on each router.  You're almost
certainly going to get some fun with fragmentation, so might need some
tweaks there, but in theory it *ought* to work - although I've never tried
it with that combination of hardware, point-to-point link and non-routed
protocol.

Regards,
Tim.

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