[  517.137407] bond0: (slave eth0): making interface the new active one
[  517.137504] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.377382] bond0: (slave eth0): Releasing backup interface
[  521.496611] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.656008] bond0: (slave eth0): Releasing backup interface
[  525.684934] bond0 (unregistering): Released all slaves