[  516.714391] bond0: (slave eth0): making interface the new active one
[  516.714489] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.917524] bond0: (slave eth0): Releasing backup interface
[  521.014874] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.208891] bond0: (slave eth0): Releasing backup interface
[  525.235833] bond0 (unregistering): Released all slaves