[  517.746166] bond0: (slave eth0): making interface the new active one
[  517.746235] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.929820] bond0: (slave eth0): Releasing backup interface
[  521.986963] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.156611] bond0: (slave eth0): Releasing backup interface
[  526.196637] bond0 (unregistering): Released all slaves