[  516.369426] bond0: (slave eth0): making interface the new active one
[  516.369503] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.600970] bond0: (slave eth0): Releasing backup interface
[  520.704572] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.879025] bond0: (slave eth0): Releasing backup interface
[  524.909953] bond0 (unregistering): Released all slaves