[  516.014525] bond0: (slave eth0): making interface the new active one
[  516.014620] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.222111] bond0: (slave eth0): Releasing backup interface
[  520.340203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.570158] bond0: (slave eth0): Releasing backup interface
[  524.602813] bond0 (unregistering): Released all slaves