[  516.098156] bond0: (slave eth0): making interface the new active one
[  516.098260] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.344262] bond0: (slave eth0): Releasing backup interface
[  520.452976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.638177] bond0: (slave eth0): Releasing backup interface
[  524.669044] bond0 (unregistering): Released all slaves