Hi Chris,

> Does a more recent version of VPP rely on
> either DPDK 19.08 or DPDK 19.11?

VPP 20.01 has just been released and uses DPDK 19.08.

> Does anyone have ideas on how I could use VPP, but capture packets at the
> DPDK layer (on Azure)?

I do not think we support that today, however you can always use VPP pcap 
support: 
https://fd.io/docs/vpp/master/gettingstarted/developers/vnet.html#pcap-rx-tx-and-drop-tracing
You can even attach filters to only dump packets from specific flows. I do not 
know how much it will impact your performance though, you'll need to experiment.

Best
ben
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