[  519.738132] bond0: (slave eth0): making interface the new active one
[  519.738222] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.000474] bond0: (slave eth0): Releasing backup interface
[  524.120437] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.343941] bond0: (slave eth0): Releasing backup interface
[  528.365892] bond0 (unregistering): Released all slaves