I know there are two physical network interfaces in our server (haven't seen it live, but person from datacenter confirmed two ethernet sockets). Problem is, I can only see one via ifconfig -a. At first, here's what lspci reported: # lspci -vv|grep -i ethernet 00:19.0 Ethernet controller: Intel Corporation Unknown device 10bd (rev 02) 03:02.0 Ethernet controller: Intel Corporation 82541GI/PI Gigab