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From: Jonathan Morton <chromatix99@gmail.com>
To: Dave Taht <dave.taht@gmail.com>
Cc: Bufferbloat Mainlinglist <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] No ECN marking in IPv6 linux
Date: Fri, 6 May 2011 21:18:13 +0300	[thread overview]
Message-ID: <5D1A6041-9ACA-450A-BE9B-F9415F697C65@gmail.com> (raw)
In-Reply-To: <BANLkTin1k_ZfgjKk1sgxamTCRJqBE66exw@mail.gmail.com>


On 6 May, 2011, at 9:14 pm, Dave Taht wrote:

> I am curious as to what the correct behavior here should be for encapsulated (6in4, 6to4, teredo) packets, and if this functionality was also borked. I was under the impression that for encapsulated packets the tos field was copied from the encapsulated packet to the ipv4 header.

Intuitively, these protocols are at the same level as IP in the stack, so they should preserve ECN information as much as possible.  Copying the TOS field should be sufficient...

 - Jonathan


  reply	other threads:[~2011-05-06 18:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-14  4:44 [Bloat] ECN blocking router found Dave Taht
2011-04-14 14:43 ` Brian Clapper
2011-04-15 17:40 ` Rui Paulo
2011-04-23  7:43   ` Richard Scheffenegger
2011-04-18 16:43 ` [Bloat] tcp_ecn=2 (server-mode ECN) Henrique de Moraes Holschuh
2011-05-06 15:27   ` [Bloat] No ECN marking in IPv6 linux Eric Dumazet
2011-05-06 18:14     ` Dave Taht
2011-05-06 18:18       ` Jonathan Morton [this message]
2011-05-06 19:42         ` Dave Taht
2011-05-09  3:28           ` Dave Taht
2011-05-09 12:11         ` Lars Eggert
2011-05-16 15:09       ` Juliusz Chroboczek
2011-05-06 18:40     ` Matthew Ford

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