[  516.041780] bond0: (slave eth0): making interface the new active one
[  516.041855] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.220208] bond0: (slave eth0): Releasing backup interface
[  520.318536] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.503243] bond0: (slave eth0): Releasing backup interface
[  524.535128] bond0 (unregistering): Released all slaves