[  514.537141] bond0: (slave eth0): making interface the new active one
[  514.537223] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.772734] bond0: (slave eth0): Releasing backup interface
[  518.981548] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.296219] bond0: (slave eth0): Releasing backup interface
[  523.333342] bond0 (unregistering): Released all slaves