[  514.741590] bond0: (slave eth0): making interface the new active one
[  514.741701] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.930526] bond0: (slave eth0): Releasing backup interface
[  519.000138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.162204] bond0: (slave eth0): Releasing backup interface
[  523.190217] bond0 (unregistering): Released all slaves