[  520.610360] bond0: (slave eth0): making interface the new active one
[  520.610435] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.820772] bond0: (slave eth0): Releasing backup interface
[  524.910184] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.111130] bond0: (slave eth0): Releasing backup interface
[  529.140174] bond0 (unregistering): Released all slaves