[  501.102264] bond0: (slave eth0): making interface the new active one
[  501.102340] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.298543] bond0: (slave eth0): Releasing backup interface
[  505.392710] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.587831] bond0: (slave eth0): Releasing backup interface
[  509.611980] bond0 (unregistering): Released all slaves