[  504.061593] bond0: (slave eth0): making interface the new active one
[  504.061662] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.238224] bond0: (slave eth0): Releasing backup interface
[  508.326330] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.465804] bond0: (slave eth0): Releasing backup interface
[  512.499766] bond0 (unregistering): Released all slaves