Re: [libvirt] necessary to limit container's network bandwidth when use physical nic in container?

On 15.10.2012 10:35, Gao feng wrote: > we can use tc to limit container's network bandwidth when the container uses veth device. > because one of the veth devices will be seen in the host.so we can set tc rules on this > device on the host. > > I want to know if it's necessary to limit container's network bandwidth when the container > uses a physical nic device. because this nic device is only used by this container. > > And if this is necessary,Be there any good idea? > > Thanks! > Well, that depends. If you expect you guest to consume all bandwidth then you need to set a floor on root eth. Guest is then still able to use the full bandwidth, however if there are some packets for the host those get prioritized. In general, it's a good idea, but to tell for sure one should learn more about your usage scenario.