[  514.248673] bond0: (slave eth0): making interface the new active one
[  514.248794] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.418685] bond0: (slave eth0): Releasing backup interface
[  518.491028] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.647219] bond0: (slave eth0): Releasing backup interface
[  522.682293] bond0 (unregistering): Released all slaves