From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: vlan/macvlan 02/02: propagate transmission state to upper
 layers
Date: Tue, 10 Nov 2009 08:48:14 -0800
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Cc: "David S. Miller" <davem@davemloft.net>,
	Linux Netdev List <netdev@vger.kernel.org>
To: Patrick McHardy <kaber@trash.net>
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On Tue, 10 Nov 2009 17:14:24 +0100
Patrick McHardy <kaber@trash.net> wrote:

>   vlan/macvlan: propagate transmission state to upper layers
>     
>     Both vlan and macvlan devices usually don't use a qdisc and immediately
>     queue packets to the underlying device. Propagate transmission state of
>     the underlying device to the upper layers so they can react on congestion
>     and/or inform the sending process.
>     
>     Signed-off-by: Patrick McHardy <kaber@trash.net>


Bridging and bonding have same issue, but the solution is more difficult.