Aggregating interfaces can be a pain, but it doesn't have to be. With
Red Hat 7 and above, you can team your interfaces with very little
effort. Frankly, it is pretty awesome.
There is one catch, though. You will have to learn to use Network
Manager.Specifically,
nmcli.
Much can be say about whether Network Manager is necessary or not on the
server, but after working with nmcli, I could at least see how useful it
is when comes to persistently set teaming configurations. I mean, the
setup goes something like this:
Create a team configuration file, using one of the example in the
documentation directory
cd /usr/share/doc/teamd-1.17/example_configs/
cpactivebackup_ethtool_1.conf tmp.json
cat tmp.json
Then create the master, using the above configuration:
nmcli con add type team con-name team0ifnameteam0configtmp.json
Then add the slaves:
nmcli con add type team-slave con-name ens8ifnameens8masterteam0
nmcli con add type team-slave con-name ens9ifname ens9masterteam0
Re-start the interfaces and you are done!
It does smell a bit, but after fighting with Network Manager for the
last decade, maybe it is time to at least give it a chance.