[  504.337800] bond0: (slave eth0): making interface the new active one
[  504.337885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.498300] bond0: (slave eth0): Releasing backup interface
[  508.578408] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.780629] bond0: (slave eth0): Releasing backup interface
[  512.814542] bond0 (unregistering): Released all slaves