Re: [quicwg/base-drafts] Idle timeout indicates you will timeout (#3099)

ianswett <notifications@github.com> Sat, 02 November 2019 20:53 UTC

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Subject: Re: [quicwg/base-drafts] Idle timeout indicates you will timeout (#3099)
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ianswett commented on this pull request.



> -know what information can be retried.
+Each endpoint advertises a different max_idle_timeout, but the effective value
+is determined by taking the minimum of the two advertised values. By announcing
+a max_idle_timeout, endpoints commit to initiating an immediate close
+({{immediate-close}}) if it abandons a connection prior to the effective value.
+
+An endpoint restarts any timer it maintains when a packet from its peer is
+received and processed successfully.  The timer is also restarted when sending
+a packet containing frames other than ACK or PADDING (an ack-eliciting packet;
+see {{QUIC-RECOVERY}}), but only if no other ack-eliciting packets have been
+sent since last receiving a packet.  Restarting when sending packets ensures
+that connections do not prematurely time out when initiating new activity.
+
+An endpoint that sends packets near the end of the idle timeout period
+risks having those packets discarded if its peer enters the draining state
+before the packets arrive.  If a peer could time out within an Probe Timeout

Agreed, I'll file an issue to address your and Mike's comments.

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