[  504.707050] bond0: (slave eth0): making interface the new active one
[  504.707139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.885504] bond0: (slave eth0): Releasing backup interface
[  508.971712] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.175543] bond0: (slave eth0): Releasing backup interface
[  513.200371] bond0 (unregistering): Released all slaves