what do you find in dmesg and /var/log/messages? The system should bring it up automatically. If not, you should get an error for the prompts. ------------ Banyan He Blog: http://www.rootong.com Email: banyan at rootong.com On 3/24/2013 10:27 AM, Joakim Ziegler wrote: > I have a recently installed Mellanox VPI interface in my server. This is > an InfiniBand interface, which, through the use of adapters, can also do > 10GbE over fiber. I have one of the adapter's two ports configured for > 10GbE in this way, with a point to point link to a Mac workstation with > a Myricom 10GbE card. > > I've configured this interface on the Linux box (eth2) using > /etc/sysconfig/network-scripts/ifcfg-eth2 , setting its IP address, MTU, > subnet, etc. > > Everything seems to work fine, with a single exception. If I reboot the > Mac on the other end, causing the link state of the fiber interface to > bounce, the network interface on the Linux box doesn't come back up when > the link comes back up. That is, ifconfig shows it as having the link > up, but it doesn't do the equivalent of "ifup eth2" when the link comes > back, so it doesn't get an IP, the routing table doesn't get updated, etc. > > So, my question is, how can I make CentOS automatically configure this > interface when the link comes back up? It's a bit annoying having to log > in and do ifup eth2 every time... >