[  513.931876] bond0: (slave eth0): making interface the new active one
[  513.931969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.171079] bond0: (slave eth0): Releasing backup interface
[  518.279260] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.454001] bond0: (slave eth0): Releasing backup interface
[  522.488940] bond0 (unregistering): Released all slaves