[  515.484502] bond0: (slave eth0): making interface the new active one
[  515.484591] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.715040] bond0: (slave eth0): Releasing backup interface
[  519.809934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.000412] bond0: (slave eth0): Releasing backup interface
[  524.031865] bond0 (unregistering): Released all slaves