[  505.280517] bond0: (slave eth0): making interface the new active one
[  505.280604] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.457434] bond0: (slave eth0): Releasing backup interface
[  509.524476] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.688329] bond0: (slave eth0): Releasing backup interface
[  513.720251] bond0 (unregistering): Released all slaves