[  520.225904] bond0: (slave eth0): making interface the new active one
[  520.225979] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.444885] bond0: (slave eth0): Releasing backup interface
[  524.556467] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.727042] bond0: (slave eth0): Releasing backup interface
[  528.756011] bond0 (unregistering): Released all slaves