[  518.912399] bond0: (slave eth0): making interface the new active one
[  518.912489] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.166093] bond0: (slave eth0): Releasing backup interface
[  523.272149] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.443011] bond0: (slave eth0): Releasing backup interface
[  527.476005] bond0 (unregistering): Released all slaves