[  501.500055] bond0: (slave eth0): making interface the new active one
[  501.500190] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.708501] bond0: (slave eth0): Releasing backup interface
[  505.856666] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.121798] bond0: (slave eth0): Releasing backup interface
[  510.154644] bond0 (unregistering): Released all slaves