[  513.308312] bond0: (slave eth0): making interface the new active one
[  513.308379] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.530916] bond0: (slave eth0): Releasing backup interface
[  517.628215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.813963] bond0: (slave eth0): Releasing backup interface
[  521.842930] bond0 (unregistering): Released all slaves