[  514.700898] bond0: (slave eth0): making interface the new active one
[  514.700979] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.932860] bond0: (slave eth0): Releasing backup interface
[  519.030362] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.221911] bond0: (slave eth0): Releasing backup interface
[  523.254881] bond0 (unregistering): Released all slaves