On Wed, Sep 24, 2014 at 10:20 AM, Jonathan Billings <billings at negate.org> wrote: > >> I'm trying Centos7 and using systemD. I've noticed that interfaces >> name does not have anymore eth0,eth1, ethN but a different name. >> >> What do you think about predictable network if name assigned by systemd? > > For what its worth, there was a change in device naming in CentOS 6 > (going from eth0 -> em1, for example) which affected a subset of > hardware out there (We saw it on Dell hardware, mostly). We had > already managed to deal with the fact tha 'eth0' is no longer > guarenteed (in scripts, usually by looking in /sys/class/net/), so > dealing with non-eth0-naming wasn't a huge surprise, however, the way > devices are named changed. For what it's worth, I am not thrilled > with the incredibly complex names but I understand their utility. eth0 was never guaranteed to be the 'right' interface - or even to exist in some circumstances with udev naming. If scripts using fixed names ever worked it was mostly a matter of luck. -- Les Mikesell lesmikesell at gmail.com