[  516.765129] bond0: (slave eth0): making interface the new active one
[  516.765244] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.924118] bond0: (slave eth0): Releasing backup interface
[  520.999114] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.150361] bond0: (slave eth0): Releasing backup interface
[  525.183310] bond0 (unregistering): Released all slaves