[  520.129936] bond0: (slave eth0): making interface the new active one
[  520.130028] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.309240] bond0: (slave eth0): Releasing backup interface
[  524.385821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.540065] bond0: (slave eth0): Releasing backup interface
[  528.572050] bond0 (unregistering): Released all slaves