[  514.552161] bond0: (slave eth0): making interface the new active one
[  514.552251] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.817388] bond0: (slave eth0): Releasing backup interface
[  518.936429] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.205980] bond0: (slave eth0): Releasing backup interface
[  523.237926] bond0 (unregistering): Released all slaves