On 30.03.2014 14:46, Pradeep Kiruvale wrote: > Hi All, > > I am new to QEMU/libvirt > > I was starting to learn the libvirt code,I was browsing the code how > the guest network bandwidth to be set like we mention <inbound> <outbound> > tags in the xml,but where in code exactly these values set to the guest > interface. > > I browsed the code a lot could not find it.Please help to understand how > this works. > > > The bandwidth is set in virNetDevBandwidthSet() function: http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/util/ virnetdevbandwidth.c;h=b06ed4c63c1e64736718b880b1821d 745d7f31c2;hb=HEAD#l60 The basic idea is to call /sbin/tc a few times with the correct arguments (the path to the binary may change through different systems). Michal