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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Bufferbloat Mainlinglist <bloat@lists.bufferbloat.net>
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Date: Fri, 06 May 2011 17:27:54 +0200
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Subject: [Bloat]  No ECN marking in IPv6 linux
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FYI

IPV6 ECN support is buggy on current linux kernels

Fix is on the way, problem spotted by Steinar H. Gunderson

https://bugzilla.kernel.org/show_bug.cgi?id=34322