[  516.356331] bond0: (slave eth0): making interface the new active one
[  516.356441] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.536774] bond0: (slave eth0): Releasing backup interface
[  520.620480] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.781485] bond0: (slave eth0): Releasing backup interface
[  524.821371] bond0 (unregistering): Released all slaves