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Thanks for your contribution. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1820929 Title: netplan should consider adding more udev attribute for exact matching of failover 3-netdev interfaces Status in netplan: Triaged Status in initramfs-tools package in Ubuntu: New Status in netplan.io package in Ubuntu: Triaged Status in systemd package in Ubuntu: Incomplete Status in initramfs-tools source package in Bionic: In Progress Status in netplan.io source package in Bionic: New Status in systemd source package in Bionic: New Bug description: [Impact] * At present, virtual machines utilizing net_failover network interface configurations are incorrectly configured due to the reliance on the MAC address to identify specific network interfaces. When net_failover is utilized, multiple interfaces will bear the same MAC address (the net_failover master itself, as well as the interfaces subordinate to it), rendering the MAC address ineffective for unique identification of the interface. This results in incorrect naming of network interfaces from the "set-name" directive in the netplan configuration. * The solution here is to use the interface name instead of the MAC address when the interface is a net_failover master device. Logic is added on initramfs-tools to check the device type and virtio flags to apply this change only to net_failover master devices. [Test Case] * The change can be tested by configuring a virtual machine with a virtio_net network device with the "failover=on" option to the "-device" option to qemu, e.g., -device virtio-net- pci,netdev=hostnet0,id=net0,bus=pci.0,addr=0x3,mac=00:00:17:00:18:04,failover=on * This will set the virtio device "standby" feature bit (bit 62, counting from 0). This requires a version of qemu with support for this feature. * When so configured, the netplan configuration generated by initramfs will not contain a "macaddress:" match directive for the network interface in question. [Regression Potential] * Erroneous identification of a network interface as a net_failover master device could lead to omission of a macaddress directive, causing interfaces to be incorrectly named. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1820929/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
