[  512.002436] bond0: (slave eth0): making interface the new active one
[  512.002506] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.247011] bond0: (slave eth0): Releasing backup interface
[  516.353199] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.535023] bond0: (slave eth0): Releasing backup interface
[  520.558941] bond0 (unregistering): Released all slaves