[  506.329981] bond0: (slave eth0): making interface the new active one
[  506.330093] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.481165] bond0: (slave eth0): Releasing backup interface
[  510.569260] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.711742] bond0: (slave eth0): Releasing backup interface
[  514.753378] bond0 (unregistering): Released all slaves