[  500.043165] bond0: (slave eth0): making interface the new active one
[  500.043259] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.212082] bond0: (slave eth0): Releasing backup interface
[  504.286523] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.438253] bond0: (slave eth0): Releasing backup interface
[  508.476277] bond0 (unregistering): Released all slaves