[  521.154042] bond0: (slave eth0): making interface the new active one
[  521.154143] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.398347] bond0: (slave eth0): Releasing backup interface
[  525.505504] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.687227] bond0: (slave eth0): Releasing backup interface
[  529.715117] bond0 (unregistering): Released all slaves