[  516.365723] bond0: (slave eth0): making interface the new active one
[  516.365793] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.532020] bond0: (slave eth0): Releasing backup interface
[  520.597188] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.753180] bond0: (slave eth0): Releasing backup interface
[  524.773144] bond0 (unregistering): Released all slaves