[  505.087238] bond0: (slave eth0): making interface the new active one
[  505.087319] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.269280] bond0: (slave eth0): Releasing backup interface
[  509.347824] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.500500] bond0: (slave eth0): Releasing backup interface
[  513.530424] bond0 (unregistering): Released all slaves