[Bloat] No ECN marking in IPv6 linux

[Dave Taht]

Final patch found, merged into openwrt (tested on 2.6.38, 2.6.37), and
incorporated into the bismark and iscwrt builds. Nice catch.

I hope the next round of sfb testing goes much better.

On Fri, May 6, 2011 at 1:42 PM, Dave Taht <dave.taht at gmail.com> wrote:

>
>
> On Fri, May 6, 2011 at 12:18 PM, Jonathan Morton <chromatix99 at gmail.com>wrote:
>
>>
>> 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...
>>
>>
> My concern here is that a AQM-aware (ECN) qdisc such as SFB on the external
> interface will not recognize a flow for what it is, when encapsulated...
>
>
>
-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://the-edge.blogspot.com
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