Re: [libvirt-users] [netcf] Why netcf can not rename a existing physical interface dynamically by itself?

On 05/23/2014 06:46 AM, Jianwei Hu wrote: > Hi All, > > I have a usage question about netcf. Why netcf can not rename a existing physical interface dynamically by itself? The name of a physical interface is determined by lower levels of the operating system, and can't be modified by netcf. the configuration that is setup by netcf can only reference an *existing* physical device nam[root@rhel6 ~]# ip link set name jiahu eth1 [root@rhel6 ~]# ifconfig jiahu jiahu Link encap:Ethernet HWaddr 00:1B:21:27:4E:CE BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) [root@rhel6 ~]# ifup jiahu Determining IP information for jiahu... done. e, it can't rename it.

> If you have any other method, please share to me, or can we add support for it in netcf? One source of information is here: http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterf... (although that only completely applies to systems running recent systemd, e.g. Fedora 20, but not to RHEL6 as you appear to be running) There is a reference there of how to change an interface name in a system that isn't using "predictable network interface names" (or biosdevname, which was a short-lived alternative attempt at a solution to the same problem): modify the file /etc/udev/rules.d/70-persistent-net.rules. You'll need to reboot the system for this to take effect.