[  519.755835] bond0: (slave eth0): making interface the new active one
[  519.755936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.997349] bond0: (slave eth0): Releasing backup interface
[  524.123272] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.346030] bond0: (slave eth0): Releasing backup interface
[  528.367007] bond0 (unregistering): Released all slaves