Subject: [Spud] SPUD/PLUS and ECN feedback

From: Dave Dolson <[email-masked]>
Date: Wed, 20 Jul 2016 21:27:29 +0000

Neither draft-trammell-spud-req-04 nor draft-kuehlewind-spud-use-cases-01 discuss conveying ECE/CWR signals in the SPUD/PLUS layer.

I'm referring to https://tools.ietf.org/html/rfc3168#section-6.1 for how TCP works.

Was this intentionally omitted from the requirements, leaving it to the transport layer?
Even though the transport layer is responsible for controlling its transmit window, the ECN feedback should be used by every transport protocol, so placing the info in the SPUD/PLUS layer could be appropriate.

(Also I wonder if the network might use this to identify ECN cheaters.)

-Dave