[  517.037533] bond0: (slave eth0): making interface the new active one
[  517.037629] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.238703] bond0: (slave eth0): Releasing backup interface
[  521.318248] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.465474] bond0: (slave eth0): Releasing backup interface
[  525.488384] bond0 (unregistering): Released all slaves