[  518.976192] bond0: (slave eth0): making interface the new active one
[  518.976282] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.164298] bond0: (slave eth0): Releasing backup interface
[  523.275741] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.454473] bond0: (slave eth0): Releasing backup interface
[  527.480911] bond0 (unregistering): Released all slaves