[  517.059379] bond0: (slave eth0): making interface the new active one
[  517.059473] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.241585] bond0: (slave eth0): Releasing backup interface
[  521.313094] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.470284] bond0: (slave eth0): Releasing backup interface
[  525.506331] bond0 (unregistering): Released all slaves