[  513.854962] bond0: (slave eth0): making interface the new active one
[  513.855077] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.041160] bond0: (slave eth0): Releasing backup interface
[  518.149012] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.332831] bond0: (slave eth0): Releasing backup interface
[  522.358752] bond0 (unregistering): Released all slaves