[  520.151498] bond0: (slave eth0): making interface the new active one
[  520.151573] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.299286] bond0: (slave eth0): Releasing backup interface
[  524.368658] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.529244] bond0: (slave eth0): Releasing backup interface
[  528.554243] bond0 (unregistering): Released all slaves