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Three times PTOs allows PTO to expire #4084

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merged 5 commits into from Sep 10, 2020
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Three times PTOs allows PTO to expire #4084

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Three times PTOs allows PTO to expire
ianswett Sep 9, 2020
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Update draft-ietf-quic-transport.md
ianswett Sep 9, 2020
c631004
Update draft-ietf-quic-transport.md
ianswett Sep 9, 2020
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Ralith's suggestion
ianswett Sep 9, 2020
36e479a
I think that this is better
martinthomson Sep 10, 2020
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5 changes: 2 additions & 3 deletions draft-ietf-quic-transport.md
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Expand Up @@ -2222,8 +2222,7 @@ defined in {{QUIC-RECOVERY}} is RECOMMENDED. That is:
~~~

This timeout allows for multiple PTOs to expire prior to failing path
validation, allowing for at least one path validation to be lost before
declaring failure.
validation, ensuring one packet loss does not cause path validation failure.
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Note that the endpoint might receive packets containing other frames on the new
path, but a PATH_RESPONSE frame with appropriate data is required for path
Expand Down Expand Up @@ -2708,7 +2707,7 @@ ensures that connections are not closed after new activity is initiated.
To avoid excessively small idle timeout periods, endpoints MUST increase the
idle timeout period to be at least three times the current Probe Timeout (PTO).
This allows for multiple PTOs to expire prior to idle timeout, allowing for at
least one path packet to be lost timing out the connection.
least one packet to be lost prior to idle timeout.


### Liveness Testing
Expand Down