[  521.629569] bond0: (slave eth0): making interface the new active one
[  521.629651] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.836576] bond0: (slave eth0): Releasing backup interface
[  525.903855] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.059277] bond0: (slave eth0): Releasing backup interface
[  530.096222] bond0 (unregistering): Released all slaves