[  509.200541] bond0: (slave eth0): making interface the new active one
[  509.200704] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.363989] bond0: (slave eth0): Releasing backup interface
[  513.434825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.587470] bond0: (slave eth0): Releasing backup interface
[  517.617381] bond0 (unregistering): Released all slaves