[  517.580841] bond0: (slave eth0): making interface the new active one
[  517.581055] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.818450] bond0: (slave eth0): Releasing backup interface
[  521.932717] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.105319] bond0: (slave eth0): Releasing backup interface
[  526.132090] bond0 (unregistering): Released all slaves