[  516.724650] bond0: (slave eth0): making interface the new active one
[  516.724741] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.906368] bond0: (slave eth0): Releasing backup interface
[  520.993178] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.135196] bond0: (slave eth0): Releasing backup interface
[  525.166296] bond0 (unregistering): Released all slaves