[c-nsp] mystery pseudowire interfaces?

[Nick Hilliard]

Mack McBride wrote:
> Another explanation is that pseudowires were previously created on the device and deleted and then
> When MPLS was re-enabled, the interfaces reappeared.

No need even to temporarily disable mpls - pseudowire interfaces are
automatically created on the me3600 platform and don't disappear even if
the xconnect is deleted.

E.g. this is a deleted mpls xconnect which no longer appears in the
running config on an me3600 running 15.3.foo:

> pseudowire100002 is up
>     Description: Pseudowire Interface
>     MTU 1500 bytes, BW 10000000 Kbit
>     Encapsulation unknown
>     Peer IP x.y.z.w, VC ID 10007
>     RX
>       0 packets 0 bytes 0 drops
>     TX
>       0 packets 0 bytes 0 drops

Rebooting clears this.

No idea why the OP saw one of these with l2tpv2 encapsulation.  Active
configuration?  If not, then refer to tac.

Nick