[  520.243421] bond0: (slave eth0): making interface the new active one
[  520.243503] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.434228] bond0: (slave eth0): Releasing backup interface
[  524.497969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.660333] bond0: (slave eth0): Releasing backup interface
[  528.690290] bond0 (unregistering): Released all slaves