[  514.802947] bond0: (slave eth0): making interface the new active one
[  514.803019] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.062722] bond0: (slave eth0): Releasing backup interface
[  519.167859] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.355173] bond0: (slave eth0): Releasing backup interface
[  523.384071] bond0 (unregistering): Released all slaves