[  516.001630] bond0: (slave eth0): making interface the new active one
[  516.001708] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.212605] bond0: (slave eth0): Releasing backup interface
[  520.312019] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.498098] bond0: (slave eth0): Releasing backup interface
[  524.527406] bond0 (unregistering): Released all slaves