[  521.064048] bond0: (slave eth0): making interface the new active one
[  521.064159] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.258040] bond0: (slave eth0): Releasing backup interface
[  525.327621] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.487126] bond0: (slave eth0): Releasing backup interface
[  529.513181] bond0 (unregistering): Released all slaves