[  517.035780] bond0: (slave eth0): making interface the new active one
[  517.035854] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.240222] bond0: (slave eth0): Releasing backup interface
[  521.321384] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.468322] bond0: (slave eth0): Releasing backup interface
[  525.501319] bond0 (unregistering): Released all slaves