[  501.161106] bond0: (slave eth0): making interface the new active one
[  501.161241] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.360602] bond0: (slave eth0): Releasing backup interface
[  505.436880] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.586395] bond0: (slave eth0): Releasing backup interface
[  509.618365] bond0 (unregistering): Released all slaves