[  508.056968] bond0: (slave eth0): making interface the new active one
[  508.057065] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.273687] bond0: (slave eth0): Releasing backup interface
[  512.363001] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.559830] bond0: (slave eth0): Releasing backup interface
[  516.598744] bond0 (unregistering): Released all slaves