Sorry for the late response. For your question , you could not limit the
network traffic in that way. Because TC will only limit the traffic send out
from the target device . And for the device of veth type , the device on the
host end will “send out” the traffic to the container , and it will “receive”
the traffic come from the container . Thus , you have to go into the container
to run your command , and that is not what we want. So I’ve added a new option
“peer” to support running the command on the host. And for your command , it
may run like this (on the host) :
sudo tc qdisc add dev peer xxx root tbf rate 0.5mbit burst 5kb latency 70ms
peakrate 1mbit minburst 1540
Which will take effective on the peer end of the xxx. In this way , we
may control the network traffic of the container from the host end .
At 2013-06-15 05:27:01,"Serge Hallyn" <serge.hal...@ubuntu.com> wrote:
>Quoting lsmushroom (lsmushr...@126.com):
>> Hi All,
>> Recently , we have been trying to find out a suitable way to
>> limit network traffic generated from the process running in the
>> container. The network type we used for our container is veth.
>> And we have tried TC combined with cgroup net_cls subsystem ,
>> which has successfully fulfill our goal . However , it requires
>> to add the configurations inside the container. As we will
>> provide the container as a service, and it is obviously
>> unacceptable to allow the end user modify the bandwidth
>> allocation .
>
>If I just set the veth pair name to xxx and issue:
>
>sudo tc qdisc add dev xxx root tbf rate 0.5mbit burst 5kb latency 70ms
>peakrate 1mbit minburst 1540
>
>on the host, the container's network is rated limited.
>
>Do you want something different?
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