[  514.527255] bond0: (slave eth0): making interface the new active one
[  514.527353] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.749052] bond0: (slave eth0): Releasing backup interface
[  518.870339] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.097044] bond0: (slave eth0): Releasing backup interface
[  523.125983] bond0 (unregistering): Released all slaves