[  501.638177] bond0: (slave eth0): making interface the new active one
[  501.638285] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.804295] bond0: (slave eth0): Releasing backup interface
[  505.886551] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.031530] bond0: (slave eth0): Releasing backup interface
[  510.060190] bond0 (unregistering): Released all slaves