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Message-ID: <1392381841.24974.5.camel@edumazet-glaptop2.roam.corp.google.com>
Date: Fri, 14 Feb 2014 04:44:01 -0800
From: Eric Dumazet <eric.dumazet@...il.com>
To: Yang Yingliang <yangyingliang@...wei.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net,
stephen@...workplumber.org
Subject: Re: [PATCH net-next 0/7] clear old options when old qdisc's replaced
On Fri, 2014-02-14 at 16:36 +0800, Yang Yingliang wrote:
> I've added a netem qdisc with rate option, then I replace this qdisc
> without rate option but with latency option. The rate option is still
> there.
>
> E.g.
> # tc qdisc add dev eth4 handle 1: root netem rate 10mbit
> # tc qdisc show
> qdisc netem 1: dev eth4 root refcnt 2 limit 1000 rate 10Mbit
>
> # tc qdisc replace dev eth4 handle 1: root netem latency 10ms
> # tc qdisc show
> qdisc netem 1: dev eth4 root refcnt 2 limit 1000 delay 10.0ms rate 10Mbit
>
> The old options need be cleared after the qdisc is replaced.
Not at all. Test your changes with "tc qdisc change ... "
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