[  504.773104] bond0: (slave eth0): making interface the new active one
[  504.773203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.948886] bond0: (slave eth0): Releasing backup interface
[  509.028014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.173518] bond0: (slave eth0): Releasing backup interface
[  513.200419] bond0 (unregistering): Released all slaves