[  514.823434] bond0: (slave eth0): making interface the new active one
[  514.823581] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.996053] bond0: (slave eth0): Releasing backup interface
[  519.085098] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.289188] bond0: (slave eth0): Releasing backup interface
[  523.321223] bond0 (unregistering): Released all slaves