Re: [quicwg/base-drafts] Simplify TLP and RTO into Probe Timeout (#2114)

[ianswett <[e-mail]>]

ianswett commented on this pull request.



>  
-## Retransmission Timeout
+A PTO expiration is classified as spurious or valid when an ACK frame is
+received that newly acknowledges packets in flight, see {{pto-loss}}.  On a
+valid PTO, the congestion window MUST be reduced to the minimum congestion
+window and slow start is re-entered.

If you have a lot of tails(ie: HTTP traffic), then it doesn't take too many packet losses to end up hitting this.  TLP was targeted partially at cases like that, and I think you'll find changing it will produce measurable performance regressions in web traffic.  We can do something else in a follow-up, but as I said before, I'd prefer text saying SHOULD consider an acknowledgement of the first PTO as standard packet loss, not extreme congestion, and treat it as such.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/2114#discussion_r240960383