Currently, my setup is having many nodes, each having RHEL 7 installed, with each node having only one single interface. I am using ovs-bridge and a vlan-tagged interface within the host. I use vlan-tagged virtual-interfaces to process the vlan-tagged traffic. I have disabled NetworkManager.
Example of my network config:-
BOOTPROTO="dhcp" DEVICE="eth0" HWADDR="80:34:53:23:12:45" ONBOOT=yes PEERDNS=no DEFROUTE=no PEERROUTES=no
My vlan-tagged interface /etc/sysconfig/network-scripts/ifcfg-eth0.200:-
DEVICE=eth0.200 DEVICETYPE=ovs TYPE=OVSPort OVS_BRIDGE=br100 ONBOOT=yes BOOTPROTO=none VLAN=yes NOZEROCONF=yes
My openvswitch bridge /etc/sysconfig/network-scripts/ifcfg-br100 :-
ONBOOT=yes IPADDR=100.100.100.20 NETMASK=255.255.255.0 GATEWAY=100.100.100.1 DEVICE=br100 DEVICETYPE=ovs OVSBOOTPROTO=static TYPE=OVSBridge
Now, here is the main problem:-
When I reboot the system, at the boot time, it tries to bring up br100, then eth0 and then eth0.200. Networking works fine only and only if the interfaces are brought up in order eth0, eth0.200 and br100 respectively.
Is there any way using which I can order the bringing up of interfaces at boot time? I am a bit hesitant to use scripts to restart the networks once the system is fully up as some services fail initially and I have to manually go and start them. I am unable to figure out how can I make bringup of eth0 before br100? Any pointers would be really helpful.