[  520.031234] bond0: (slave eth0): making interface the new active one
[  520.031328] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.244436] bond0: (slave eth0): Releasing backup interface
[  524.331588] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.532079] bond0: (slave eth0): Releasing backup interface
[  528.557053] bond0 (unregistering): Released all slaves