[  519.627824] bond0: (slave eth0): making interface the new active one
[  519.627917] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.797705] bond0: (slave eth0): Releasing backup interface
[  523.872108] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.026788] bond0: (slave eth0): Releasing backup interface
[  528.051271] bond0 (unregistering): Released all slaves