[  517.235871] bond0: (slave eth0): making interface the new active one
[  517.236011] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.427741] bond0: (slave eth0): Releasing backup interface
[  521.504837] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.658929] bond0: (slave eth0): Releasing backup interface
[  525.705210] bond0 (unregistering): Released all slaves