[  517.003669] bond0: (slave eth0): making interface the new active one
[  517.003764] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.164425] bond0: (slave eth0): Releasing backup interface
[  521.227162] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.386226] bond0: (slave eth0): Releasing backup interface
[  525.410177] bond0 (unregistering): Released all slaves