[  514.586478] bond0: (slave eth0): making interface the new active one
[  514.586562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.740600] bond0: (slave eth0): Releasing backup interface
[  518.817610] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.971711] bond0: (slave eth0): Releasing backup interface
[  523.005181] bond0 (unregistering): Released all slaves