[  517.157712] bond0: (slave eth0): making interface the new active one
[  517.157828] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.355899] bond0: (slave eth0): Releasing backup interface
[  521.435926] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.582362] bond0: (slave eth0): Releasing backup interface
[  525.613367] bond0 (unregistering): Released all slaves