[  508.254786] bond0: (slave eth0): making interface the new active one
[  508.254899] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.414138] bond0: (slave eth0): Releasing backup interface
[  512.485428] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.641483] bond0: (slave eth0): Releasing backup interface
[  516.674327] bond0 (unregistering): Released all slaves