[  501.353711] bond0: (slave eth0): making interface the new active one
[  501.353779] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.547528] bond0: (slave eth0): Releasing backup interface
[  505.617371] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.770475] bond0: (slave eth0): Releasing backup interface
[  509.795408] bond0 (unregistering): Released all slaves