[  517.475112] bond0: (slave eth0): making interface the new active one
[  517.475239] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.681829] bond0: (slave eth0): Releasing backup interface
[  521.753347] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.907802] bond0: (slave eth0): Releasing backup interface
[  525.941412] bond0 (unregistering): Released all slaves