asr1k service instance plus BDI on portchannel

Hi folks.

So, I have a 1Gb LACP portchannel on g0/0/0. It is presenting to me multiple vlans, double-tagged.

Normally I would use subinterfaces, indeed that's what I am doing now. However, I need to link one of the vlans to a BDI so I can hook pseudowires to it. The logical answer here seems to be to convert to service instance/EVC configuration. However, I cannot for the life of me get this to work.

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l2vpn vfi context fred bridge-domain 1113 member vfi fred member po1 service-instance 10 int po1 no ip address service instance 10 ethernet encap dot1q 1111 second 1113 int bdi 1113 ip address 1.1.1.1 255.255.255.0 

I'm seeing MAC addresses from show bridge-domain. But I can't ping across. If I switch back to subint, it works fine.

Another book suggests a "rewrite ingress pop 2 symmetric" but it seems to depend what book you look at.

This just doesn't seem like it should be rocket science, I'm trying to just do straight out of the book.

https://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asr1000-software-config-guide/evc-port-chann-asr.html

So what the heck am I doing wrong? I have to assume it's something to do with tag stack but I'm not seeing it.

This is IOS 16.12 on a ASR1001-X.