Member interfaces of a bond are down in a VyOS VM on Proxmox. This doesn't seem to affect VMs on VMWare Workstation and QEMU.
At least the active-backup bonding mode is affected, maybe others too.
Minimal config for reproduction:
set interfaces bonding bond0 member interface 'eth0' set interfaces bonding bond0 member interface 'eth1' set interfaces bonding bond0 member interface mode 'active-backup'
Forum thread: https://forum.vyos.io/t/bond-member-interfaces-down/8716