[  521.992389] bond0: (slave eth0): making interface the new active one
[  521.992522] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.157828] bond0: (slave eth0): Releasing backup interface
[  526.234138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.386625] bond0: (slave eth0): Releasing backup interface
[  530.423428] bond0 (unregistering): Released all slaves