[  517.044699] bond0: (slave eth0): making interface the new active one
[  517.044795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.270829] bond0: (slave eth0): Releasing backup interface
[  521.459752] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.800377] bond0: (slave eth0): Releasing backup interface
[  525.831260] bond0 (unregistering): Released all slaves