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Re: [webrtc-extensions] Consider an API for non-delivered messages in SCTP datachannels (#50)

From: Bernard Aboba via GitHub <sysbot+gh@w3.org>
Date: Thu, 06 Jan 2022 01:41:21 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-1006215974-1641433280-sysbot+gh@w3.org>
What is the use case for this API?  Is the goal to provide statistics so as to enable monitoring of application performance?  Or is there something that we are enabling the application to do? 

I do not believe that SCTP-layer delivery information is directly actionable within a browser applications. A sending application cannot assume that the receiving application has gotten a message without an application-layer acknowledgement;  reception at the SCTP layer does not imply successful application processing.  Similarly, an application cannot use delivery information to implement its own congestion control or flow control (e.g. attempting to do so will conflict with SCTP's own mechanisms).

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