[  522.032741] bond0: (slave eth0): making interface the new active one
[  522.032851] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.222585] bond0: (slave eth0): Releasing backup interface
[  526.298097] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.453491] bond0: (slave eth0): Releasing backup interface
[  530.479381] bond0 (unregistering): Released all slaves