[  518.992443] bond0: (slave eth0): making interface the new active one
[  518.992527] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.146480] bond0: (slave eth0): Releasing backup interface
[  523.220635] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.372764] bond0: (slave eth0): Releasing backup interface
[  527.404543] bond0 (unregistering): Released all slaves