[  521.915008] bond0: (slave eth0): making interface the new active one
[  521.915095] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.113911] bond0: (slave eth0): Releasing backup interface
[  526.219540] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.398264] bond0: (slave eth0): Releasing backup interface
[  530.425137] bond0 (unregistering): Released all slaves