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

[ianswett <[e-mail]>]

ianswett commented on this pull request.



> -draining state before the packets arrive.  If a peer could timeout within a
-Probe Timeout (PTO; see Section 6.3 of {{QUIC-RECOVERY}}), it is advisable to
-test for liveness before sending any data that cannot be retried safely.  Note
-that it is likely that only applications or application protocols will
-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.

Also pre-existing.

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