In-band Network Telemetry

I’ve done a bit of research into P4 recently. Figuring out if the IP-[TCP/UDP] mono-culture is here stay is a long-term interest of mine and P4 is perhaps one way to break that mono-culture.

One of the use cases presented for P4 is in-band telemetry. None of this really requires P4 but it’s interesting to think about hardware driven implementations.

P4 In-band Network Telemetry