LISP "native" and QUIC can't listen to the same UDP port. Not well-defined for dispatching.

Yorus,
Joel

On 3/22/2022 11:13 AM, Dino Farinacci wrote:
QUIC is a fully fledged transport in VPP’s host stack so yes, it can listen on 
any port. It’s based on quicly [1] and northbound, towards the app, it exposes 
an API similar to the one used by other transports, e.g., TCP, UDP, TLS. The 
VPP internal APIs are not POSIX compliant.

So if an implementation used VPP to implement LISP over QUIC, could the LISP 
implementation listen on UDP port 4342 and QUIC port 4342 so to speak?

We need both datagram support (UDP) and QUIC support at the same time on the 
same ETR.

Dino



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