[  499.430507] bond0: (slave eth0): making interface the new active one
[  499.430574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.627359] bond0: (slave eth0): Releasing backup interface
[  503.707014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.853251] bond0: (slave eth0): Releasing backup interface
[  507.893199] bond0 (unregistering): Released all slaves