[  516.268095] bond0: (slave eth0): making interface the new active one
[  516.268180] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.470672] bond0: (slave eth0): Releasing backup interface
[  520.576100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.755766] bond0: (slave eth0): Releasing backup interface
[  524.780663] bond0 (unregistering): Released all slaves