[  516.646521] bond0: (slave eth0): making interface the new active one
[  516.646609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.857234] bond0: (slave eth0): Releasing backup interface
[  520.950388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.142918] bond0: (slave eth0): Releasing backup interface
[  525.171893] bond0 (unregistering): Released all slaves