netdev - Re: DSCP values in TCP handshake

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Date:	Mon, 18 Apr 2011 16:05:12 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Joe Buehler <aspam@....net>
Cc:	netdev@...r.kernel.org
Subject: Re: DSCP values in TCP handshake

Le lundi 18 avril 2011 à 13:48 +0000, Joe Buehler a écrit :
> What does the LINUX network code put in the DSCP field of TCP SYN-ACK packets
> that are replies to a SYN connection request?  I have a customer sending SYN
> with 0x2e in the DSCP field but apparently getting DSCP 0x0 in the reply.

The other way (server->client) is depending on application and listener
only.

If it uses a standard socket, standard bind() + listen(), TOS is 0



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