[  521.600447] bond0: (slave eth0): making interface the new active one
[  521.600564] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.772417] bond0: (slave eth0): Releasing backup interface
[  525.845371] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.993374] bond0: (slave eth0): Releasing backup interface
[  530.018375] bond0 (unregistering): Released all slaves