[  516.545082] bond0: (slave eth0): making interface the new active one
[  516.545169] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.709997] bond0: (slave eth0): Releasing backup interface
[  520.770250] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.932910] bond0: (slave eth0): Releasing backup interface
[  524.970785] bond0 (unregistering): Released all slaves