[  519.938273] bond0: (slave eth0): making interface the new active one
[  519.938355] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.104779] bond0: (slave eth0): Releasing backup interface
[  524.181264] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.333450] bond0: (slave eth0): Releasing backup interface
[  528.366441] bond0 (unregistering): Released all slaves