[  517.449470] bond0: (slave eth0): making interface the new active one
[  517.449545] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.608818] bond0: (slave eth0): Releasing backup interface
[  521.676541] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.834006] bond0: (slave eth0): Releasing backup interface
[  525.863785] bond0 (unregistering): Released all slaves