[  501.383749] bond0: (slave eth0): making interface the new active one
[  501.383842] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.554844] bond0: (slave eth0): Releasing backup interface
[  505.620058] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.786482] bond0: (slave eth0): Releasing backup interface
[  509.819504] bond0 (unregistering): Released all slaves