[  514.450105] bond0: (slave eth0): making interface the new active one
[  514.450216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.607846] bond0: (slave eth0): Releasing backup interface
[  518.687185] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.838464] bond0: (slave eth0): Releasing backup interface
[  522.865400] bond0 (unregistering): Released all slaves