[  517.254626] bond0: (slave eth0): making interface the new active one
[  517.254688] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.431160] bond0: (slave eth0): Releasing backup interface
[  521.530631] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.716153] bond0: (slave eth0): Releasing backup interface
[  525.739015] bond0 (unregistering): Released all slaves