[  521.200095] bond0: (slave eth0): making interface the new active one
[  521.200172] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.385647] bond0: (slave eth0): Releasing backup interface
[  525.455558] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.611029] bond0: (slave eth0): Releasing backup interface
[  529.648045] bond0 (unregistering): Released all slaves