Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3702)
Martin Thomson <notifications@github.com> Tue, 09 June 2020 07:10 UTC
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Date: Tue, 09 Jun 2020 00:10:57 -0700
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3702)
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@martinthomson commented on this pull request. > -However, prior to learning the value of the transport parameter, endpoints risk -datagrams being lost if they send packets larger than 1200 bytes. +({{transport-parameter-definitions}}) might act as an additional limit on the +maximum packet size. A sender can avoid exceeding this limit, once the value is +known. However, prior to learning the value of the transport parameter, +endpoints risk datagrams being lost if they send packets larger than the +smallest allowed maximum packet size of 1200 bytes. + +A client MUST expand the payload of all UDP datagrams carrying Initial packets +to at least the smallest allowed maximum packet size (1200 bytes) by adding +PADDING frames to the Initial packet or by coalescing the Initial packet; see +{{packet-coalesce}}. Sending a UDP datagram of this size ensures that the +network path from the client to the server supports a reasonable Path Maximum +Transmission Unit (PMTU). This also helps reduce the amplitude of amplification +attacks caused by server responses toward an unverified client address; see +{{address-validation}}. Datagrams containing Initial packets MAY exceed 1200 bytes if the client I think we caught this in #3742. -- 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/3702#discussion_r437184003
- [quicwg/base-drafts] DPLPMTU merge tweaks (#3702) Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Jana Iyengar
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… msvoelker
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… msvoelker
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Jana Iyengar
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Jana Iyengar
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… ianswett
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Gorry Fairhurst
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson
- Re: [quicwg/base-drafts] DPLPMTU merge tweaks (#3… Martin Thomson