Re: [quicwg/base-drafts] describe what happens when the PTO timer expires (#2455)

MikkelFJ <notifications@github.com> Wed, 13 February 2019 15:43 UTC

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Subject: Re: [quicwg/base-drafts] describe what happens when the PTO timer expires (#2455)
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mikkelfj commented on this pull request.



> @@ -506,9 +506,10 @@ delay sending an acknowledgement.
 The PTO value MUST be set to at least kGranularity, to avoid the timer expiring
 immediately.
 
-When a PTO timer expires, the PTO period MUST be set to twice its current value.
-This exponential reduction in the sender's rate is important because the PTOs
-might be caused by loss of packets or acknowledgements due to severe congestion.
+When a PTO timer expires, the sender probes the network as described in the next
+section. The PTO period MUST be set to twice its current value. This exponential
+reduction in the sender's rate is important because the PTOs might be caused by

```suggestion
backoff in the sender's rate is important because the PTOs might be caused by
```

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