[c-nsp] Netflow on non-IP interfaces?

[Chris Balmain]

Hi list,

I'm trying, perhaps in vain, to get some Netflow data on a non-IP interface on an ASR1K - in this case, a PPPoE server interface like:

interface Port-channel1.20
encapsulation dot1Q 20
pppoe enable group XXXX
!

I tried defining a custom record that only matches & collects very basic fields:

flow record TEST
match interface input
match interface output
collect counter bytes
collect counter packets
!

...with an associated monitor/exporter and applied to the PPPoE server interface with "ip flow monitor XXX in" and ditto for out - but I don't get any flows appearing in the cache or exported to my collector. I also tried "mpls flow monitor XXX in" with the same result.

Is there any way to get Netflow to work with L2 traffic? I'm only interested in the fields I mentioned above - in/out interface, and bytes/packets counts.

Regards,
Chris