[  516.007518] bond0: (slave eth0): making interface the new active one
[  516.007631] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.145317] bond0: (slave eth0): Releasing backup interface
[  520.212054] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.370600] bond0: (slave eth0): Releasing backup interface
[  524.397564] bond0 (unregistering): Released all slaves