[  516.392760] bond0: (slave eth0): making interface the new active one
[  516.392869] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.599744] bond0: (slave eth0): Releasing backup interface
[  520.682534] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.827113] bond0: (slave eth0): Releasing backup interface
[  524.869411] bond0 (unregistering): Released all slaves