[  521.082831] bond0: (slave eth0): making interface the new active one
[  521.082926] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.272790] bond0: (slave eth0): Releasing backup interface
[  525.353983] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.501809] bond0: (slave eth0): Releasing backup interface
[  529.535631] bond0 (unregistering): Released all slaves