[  518.997082] bond0: (slave eth0): making interface the new active one
[  518.997202] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.162097] bond0: (slave eth0): Releasing backup interface
[  523.224825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.395650] bond0: (slave eth0): Releasing backup interface
[  527.431526] bond0 (unregistering): Released all slaves