[c-nsp] ASR 901 MPLS issues

[James Bensley]

On 26 January 2018 at 08:03, Gert Doering <gert at greenie.muc.de> wrote:
> This is documented to work (feature called MUX-UNI) - and we've used it
> in the past, and it worked just fine.  Not sure if it works with "general
> L3 subifs", but it most definitely works with EoMPLS VLAN interconnects.

Yeah we also use MUX-UNI on 6500s and 7600s and it works fine for us.

As Somphong said, you need to pop the VLAN tag on the ASR901. The
6500s/7600s implicitly POP the incoming VLAN tag / PUSH on egress. The
ASR901s/ASR920s/ASR9000s etc. need this to be explicitly configured.

Cheers,
James,