[  504.981065] bond0: (slave eth0): making interface the new active one
[  504.981155] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.206500] bond0: (slave eth0): Releasing backup interface
[  509.296321] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.498242] bond0: (slave eth0): Releasing backup interface
[  513.523672] bond0 (unregistering): Released all slaves