[  517.581029] bond0: (slave eth0): making interface the new active one
[  517.581127] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.813442] bond0: (slave eth0): Releasing backup interface
[  521.923599] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.098856] bond0: (slave eth0): Releasing backup interface
[  526.129795] bond0 (unregistering): Released all slaves