[  516.337865] bond0: (slave eth0): making interface the new active one
[  516.337991] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.531851] bond0: (slave eth0): Releasing backup interface
[  520.611137] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.764755] bond0: (slave eth0): Releasing backup interface
[  524.794871] bond0 (unregistering): Released all slaves