Re: Adding ECN to Transport and Recovery

"Eggert, Lars" <lars@netapp.com> Tue, 12 June 2018 12:27 UTC

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From: "Eggert, Lars" <lars@netapp.com>
To: "Lubashev, Igor" <ilubashe=40akamai.com@dmarc.ietf.org>
CC: "huitema@huitema.net" <huitema@huitema.net>, Magnus Westerlund <magnus.westerlund@ericsson.com>, Janardhan Iyengar <jri.ietf@gmail.com>, Brian Trammell <ietf@trammell.ch>, Ian Swett <ianswett@google.com>, "quic@ietf.org" <quic@ietf.org>
Subject: Re: Adding ECN to Transport and Recovery
Thread-Topic: Adding ECN to Transport and Recovery
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Date: Tue, 12 Jun 2018 12:27:01 +0000
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References: <26584f2a-230b-c55e-db16-d32225c8ee4d@ericsson.com> <5a82e9ef-971f-6510-866c-9886e73796a9@ericsson.com> <20180608150833.GB13418@ubuntu-dmitri> <CAKcm_gM_OHgWcJ+ktAg9BCQx1rtHc9GFg2bZG40-NcO2MoVG9w@mail.gmail.com> <CANatvzySuzK9EO13m_UQxb4wZkYW=+6By3QMU5gKXhq69gaUag@mail.gmail.com> <790ec098-9ec9-5eff-4785-d71d9ac92059@huitema.net> <73B82E99-EFEE-4DBC-A2CA-8FA381F33C5E@trammell.ch> <CAKcm_gN-s0XVsGL2LLusvcm5_hp-Z5_9OFMkwph5m_bGMDbAtQ@mail.gmail.com> <55DA3F1D-2B09-4D25-9630-6BC85B68A3AF@huitema.net> <CACpbDcdTtQBLNhhiX_+wWCo-OzVvBKBpS-8RsYRcZ30xhefQZQ@mail.gmail.com> <1023590e-83d4-bed2-640a-f5cd131677d4@ericsson.com> <c89e100409774521b24cbe0c1167d978@ustx2ex-dag1mb6.msg.corp.akamai.com> <8cbb589e-860b-9007-4f07-adf7c43f037b@ericsson.com> <af85bf371c9f423d88acc4a674e9e3b0@ustx2ex-dag1mb6.msg.corp.akamai.com>
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On 2018-6-12, at 14:17, Lubashev, Igor <ilubashe=40akamai.com@dmarc.ietf.org> wrote:
> The only thing that makes an attack on the congestion window nefarious vs an attack on version negotiation is that it leaves the user with an impression that the service is poor vs that the network is interfering with him connecting to the service.

Right, but that is not specific to QUIC.

There are possibilities to add mitigations at a later stage (QUIC v2 or v1.1), but I personally don't think these need to be part of v1.

Lars