[  513.883593] bond0: (slave eth0): making interface the new active one
[  513.883660] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.097589] bond0: (slave eth0): Releasing backup interface
[  518.179164] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.321367] bond0: (slave eth0): Releasing backup interface
[  522.350373] bond0 (unregistering): Released all slaves