[  521.371938] bond0: (slave eth0): making interface the new active one
[  521.372041] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.515768] bond0: (slave eth0): Releasing backup interface
[  525.587426] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.743564] bond0: (slave eth0): Releasing backup interface
[  529.786505] bond0 (unregistering): Released all slaves