Firstly there's a bug in how we parse /proc/net/dev. The format of each interface line turns out to be: %6s:... so in other words network interface names smaller than 6 characters are right justified (padded on the left with spaces). This isn't a problem for Xen because the shortest interface name (eg. 'vif1.0') is always 6 or more characters long. However it is a problem for QEMU and KVM because we have interface names such as 'vnet0'. In any case, the following patch fixes this bug. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903