[  517.163060] bond0: (slave eth0): making interface the new active one
[  517.163136] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.370833] bond0: (slave eth0): Releasing backup interface
[  521.481532] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.656082] bond0: (slave eth0): Releasing backup interface
[  525.682060] bond0 (unregistering): Released all slaves