Additional observations. MAAS is being used to deploy the system and configure the bond interface and settings.
MAAS allows you to specify which is the primary interface, with the other being the backup, for the active-backup bonding mode. However, it does not appear to be working -it's not passing along a primary primitive, for instance, in the netplan yaml or otherwise resulting in this being honored (still need to confirm). MAAS allows you to enter a mac address for the bond interface, but if not supplied, by default it will use the mac address of the "primary" interface, as configured. MAAS then populates the /etc/netplan/50-cloud-init.yaml, including a macaddr= line with the default. netplan then passes that along to systemd-networkd. The bonding kernel, however, will use as the active interface whichever interface is first attached to the bond (i.e., which completes getting attached to the bond interface first) in the absence of a primary= directive. The bonding kernel will, however, use the mac addr supplied as an override. So let's say the active interface was configured in MAAS to be f0, and it's mac is used to be the mac address of the bond, but f1 (the second port of the NIC) actually gets attached first to the bond and is used as the active interface by the bond. We have a situation where f0 = backup, f1 = active, and bond0 is using the mac of f0. While this should work, there is a potential for problems depending on the circumstances. It's likely this has nothing to do with our current issue, but here for completeness. Will see if we can test/confirm. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853638 Title: BCM57416 NetXtreme-E Dual-Media 10G RDMA Ethernet device seems to be dropping data To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853638/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
