Günther J. Niederwimmer
2018-Jun-19 12:51 UTC
[CentOS] Problem with Network devices on boot
hello, I have a question about network devices ?? on my systems Centos 7.5 I have a Problem with starting Network devices! I set up two servers with KVM on the first I have 6 KVM installed Systems on the second I have 5 KVM installed systems? When I have to reboot my system (Kernel update....) the most time one Network Device is missing on the KVM Clients (eth0) I have configured my system with I/O Shared Network like this xxx.xml <interface type='hostdev' managed='yes'> <mac address='XX:XX:XX:XX:XX:XX'/> <source> <address type='pci' domain='0x0000' bus='0x03' slot='0x13' function='0x1'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/> </interface> and a second one! <interface type='hostdev' managed='yes'> ......... ............ This Interfaces are always starting But I have also a Bridge on the systems (eth0) configure for internal Networking (DNS, LDAP.....) <interface type='bridge'> <mac address='XX:XX:XX:XX:XX:XX'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> This interface is failing the most time on some KVM Installs!! I have always to check is the Interface starting or not?? AFter 2 or 3 reboot with virsh reboot xxxxx the system is starting most time with the third Interface ! Can any tell me why this Problem exist?? Thanks for a answer, -- mit freundlichen Gr?ssen / best regards, G?nther J. Niederwimmer