[  505.516414] bond0: (slave eth0): making interface the new active one
[  505.516495] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.708464] bond0: (slave eth0): Releasing backup interface
[  509.785235] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.933375] bond0: (slave eth0): Releasing backup interface
[  513.971330] bond0 (unregistering): Released all slaves