[  518.972234] bond0: (slave eth0): making interface the new active one
[  518.972305] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.229440] bond0: (slave eth0): Releasing backup interface
[  523.343578] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.520371] bond0: (slave eth0): Releasing backup interface
[  527.558403] bond0 (unregistering): Released all slaves