[  514.705751] bond0: (slave eth0): making interface the new active one
[  514.705875] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.866917] bond0: (slave eth0): Releasing backup interface
[  518.933170] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.096585] bond0: (slave eth0): Releasing backup interface
[  523.125491] bond0 (unregistering): Released all slaves