[  520.421384] bond0: (slave eth0): making interface the new active one
[  520.421452] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.622453] bond0: (slave eth0): Releasing backup interface
[  524.697302] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.843901] bond0: (slave eth0): Releasing backup interface
[  528.878886] bond0 (unregistering): Released all slaves