Re: [quicwg/base-drafts] Attempt to define slow start/congestion avoidance (#4005)
ianswett <notifications@github.com> Mon, 17 August 2020 15:10 UTC
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Date: Mon, 17 Aug 2020 08:10:17 -0700
From: ianswett <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Attempt to define slow start/congestion avoidance (#4005)
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@ianswett approved this pull request. This is likely to conflict with #3978 > ## Congestion Avoidance -Slow start exits to congestion avoidance. Congestion avoidance uses an -Additive Increase Multiplicative Decrease (AIMD) approach that increases -the congestion window by one maximum packet size per congestion window -acknowledged. When a loss or ECN-CE marking is detected, NewReno halves -the congestion window, sets the slow start threshold to the new -congestion window, and then enters the recovery period. +The congestion controller is in congestion avoidance any time the congestion +window is at or above the slow start threshold. + +Congestion avoidance uses an Additive Increase Multiplicative Decrease (AIMD) +approach that increases the congestion window by one maximum packet size per +congestion window acknowledged. + +When first entering congestion avoidance, when a packet is declared lost, or +when the ECN-CE count is detected, the congestion controller halves the ```suggestion when the ECN-CE marking is detected, the congestion controller halves the ``` > -Additive Increase Multiplicative Decrease (AIMD) approach that increases -the congestion window by one maximum packet size per congestion window -acknowledged. When a loss or ECN-CE marking is detected, NewReno halves -the congestion window, sets the slow start threshold to the new -congestion window, and then enters the recovery period. +The congestion controller is in congestion avoidance any time the congestion +window is at or above the slow start threshold. + +Congestion avoidance uses an Additive Increase Multiplicative Decrease (AIMD) +approach that increases the congestion window by one maximum packet size per +congestion window acknowledged. + +When first entering congestion avoidance, when a packet is declared lost, or +when the ECN-CE count is detected, the congestion controller halves the +congestion window, reduces the slow start threshold to the resulting size, and +enters the recovery period. I think you're correct, do you have a good RFC reference handy? I couldn't easily find this text. -- 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/4005#pullrequestreview-468544666
- [quicwg/base-drafts] Attempt to define slow start… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… mirjak
- Re: [quicwg/base-drafts] Attempt to define slow s… ianswett
- Re: [quicwg/base-drafts] Attempt to define slow s… Mike Bishop
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… ianswett
- Re: [quicwg/base-drafts] Attempt to define slow s… mirjak
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… ianswett
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… mirjak
- Re: [quicwg/base-drafts] Attempt to define slow s… ianswett
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Kazu Yamamoto
- Re: [quicwg/base-drafts] Attempt to define slow s… Jana Iyengar
- Re: [quicwg/base-drafts] Attempt to define slow s… Jana Iyengar
- Re: [quicwg/base-drafts] Attempt to define slow s… Jana Iyengar
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Jana Iyengar
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Martin Thomson
- Re: [quicwg/base-drafts] Attempt to define slow s… Jana Iyengar