[  516.709236] bond0: (slave eth0): making interface the new active one
[  516.709326] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.925061] bond0: (slave eth0): Releasing backup interface
[  521.026219] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.206059] bond0: (slave eth0): Releasing backup interface
[  525.241905] bond0 (unregistering): Released all slaves