We are also affected by this suddenly after systemd upgrade the network was gone, had to go in via serial console.
We are only using networkd because Martin Pitt said in the run-up to the 16.04 release that networkd would be supported and to be used in the next LTS release. # networkctl IDX LINK TYPE OPERATIONAL SETUP 1 lo loopback carrier unmanaged 2 eth0 ether carrier configured 3 eth1 ether carrier configured 4 eth2 ether carrier configured 5 eth3 ether carrier configured 6 eth4 ether no-carrier configured 7 eth5 ether no-carrier configured 8 bond0 ether off unmanaged 9 bond1 ether routable configured 9 links listed. # head /etc/systemd/network/* -n 20 ==> /etc/systemd/network/bond1.netdev <== [NetDev] Name=bond1 Kind=bond [Bond] Mode=802.3ad MIIMonitorSec=100 TransmitHashPolicy=layer3+4 LACPTransmitRate=1 ==> /etc/systemd/network/bond1.network <== [Match] Name=bond1 [Link] MTUBytes=9000 [Network] LinkLocalAddressing=no [Network] Address=10.230.0.4/22 Gateway=10.230.0.1 ==> /etc/systemd/network/eth.network <== [Match] Name=eth* [Network] Bond=bond1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727301 Title: 229-4ubuntu20 added ARP option breaks existing bonding interfaces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1727301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
