[  509.662227] bond0: (slave eth0): making interface the new active one
[  509.662310] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.875340] bond0: (slave eth0): Releasing backup interface
[  513.963182] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.169740] bond0: (slave eth0): Releasing backup interface
[  518.198714] bond0 (unregistering): Released all slaves