[  514.076790] bond0: (slave eth0): making interface the new active one
[  514.076877] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.300209] bond0: (slave eth0): Releasing backup interface
[  518.401821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.585448] bond0: (slave eth0): Releasing backup interface
[  522.624474] bond0 (unregistering): Released all slaves