[  516.904581] bond0: (slave eth0): making interface the new active one
[  516.904720] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.098599] bond0: (slave eth0): Releasing backup interface
[  521.160519] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.324132] bond0: (slave eth0): Releasing backup interface
[  525.346057] bond0 (unregistering): Released all slaves