I found that the bond seems not to have come up properly: $ sudo cat /proc/net/bonding/bond-lan Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation Transmit Hash Policy: layer2+3 (2) MII Status: down MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 802.3ad info LACP rate: fast Min links: 0 Aggregator selection policy (ad_select): stable System priority: 65535 System MAC address: 5e:07:b7:b3:1d:bd bond bond-lan has no active aggregator Slave Interface: p3p4 MII Status: up Speed: 10000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 3c:fd:fe:77:32:cb Slave queue ID: 0 Aggregator ID: N/A Slave Interface: p3p3 MII Status: up Speed: 10000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 3c:fd:fe:77:32:ca Slave queue ID: 0 Aggregator ID: N/A -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1818340 Title: systemd-networkd core dumps in bionic-proposed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1818340/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs