[  517.229252] bond0: (slave eth0): making interface the new active one
[  517.229339] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.438597] bond0: (slave eth0): Releasing backup interface
[  521.538395] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.718113] bond0: (slave eth0): Releasing backup interface
[  525.743997] bond0 (unregistering): Released all slaves