[  541.421637] bond0: (slave eth0): making interface the new active one
[  541.421725] bond0: (slave eth0): Enslaving as an active interface with an up link
[  545.624970] bond0: (slave eth0): Releasing backup interface
[  545.729499] bond0: (slave eth0): Enslaving as an active interface with an up link
[  549.912877] bond0: (slave eth0): Releasing backup interface
[  549.937896] bond0 (unregistering): Released all slaves