[  517.066478] bond0: (slave eth0): making interface the new active one
[  517.066566] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.306347] bond0: (slave eth0): Releasing backup interface
[  521.402748] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.594096] bond0: (slave eth0): Releasing backup interface
[  525.624966] bond0 (unregistering): Released all slaves