[  514.468537] bond0: (slave eth0): making interface the new active one
[  514.468632] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.684082] bond0: (slave eth0): Releasing backup interface
[  518.803560] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.031083] bond0: (slave eth0): Releasing backup interface
[  523.052001] bond0 (unregistering): Released all slaves