Actually there is. Before this update, bond interfaces (specifically 802.3ad) were defaulting to ARP enabled. After the upgrade, they are created with NOARP set on the link.
pre-upgrade: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> post-upgrade: eth0: <BROADCAST,MULTICAST,NOARP,SLAVE,UP,LOWER_UP> eth1: <BROADCAST,MULTICAST,NOARP,SLAVE,UP,LOWER_UP> bond0: <BROADCAST,MULTICAST,NOARP,MASTER,UP,LOWER_UP> Linux cnode11 4.4.0-97-generic #120-Ubuntu SMP Tue Sep 19 17:28:18 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux -- 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/1709135 Title: add bond primary parameter Status in nplan package in Ubuntu: Fix Released Status in systemd package in Ubuntu: Fix Released Status in nplan source package in Xenial: Fix Committed Status in systemd source package in Xenial: Fix Released Status in nplan source package in Zesty: Fix Committed Status in systemd source package in Zesty: Fix Committed Status in nplan source package in Artful: Fix Released Status in systemd source package in Artful: Fix Released Bug description: [Impact] Some complex bond configurations require setting a "primary" interface for the bond, or setting this greatly improves performance on the network bond. [Test case] See below for a configuration example. 1) Apply configuration on a system with netplan. 2) Run 'netplan apply' 3) Validate that netplan apply does not return with an error 4) Validate that netplan properly sets the "primary_slave" value on the bond. This can be verified by looking at /sys/class/net/<bond interface>/bonding/primary_slave. 5) Validate that there are no parsing errors from systemd-networkd in the journalctl [Regression potential] If existing configuration fails to be parsed, or lack of primary interface breaks configuration for existing bonds, this would be a regression caused by this update. --- ifenslave/eni support a bond parameter: bond-primary which accepts an interface name that can be used to tell the kernel bonding driver which interface it should preferred in active-backup (and other modes). This config option is missing in netplan. % cat bond-primary.yaml network: version: 2 ethernets: eth0: match: driver: virtio ens4: match: driver: e1000 bonds: bond0: parameters: mode: active-backup mii-monitor-interval: 100 primary: e1000 dhcp4: true % ./generate -r `pwd`/target Error in network definition /home/rharper/work/git/netplan/target//etc/netplan/bond-primary.yaml line 12 column 8: unknown key primary To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nplan/+bug/1709135/+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
