[  517.106066] bond0: (slave eth0): making interface the new active one
[  517.106227] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.310171] bond0: (slave eth0): Releasing backup interface
[  521.422453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.594388] bond0: (slave eth0): Releasing backup interface
[  525.626252] bond0 (unregistering): Released all slaves