[  502.284432] bond0: (slave eth0): making interface the new active one
[  502.284551] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.454843] bond0: (slave eth0): Releasing backup interface
[  506.544669] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.737500] bond0: (slave eth0): Releasing backup interface
[  510.774346] bond0 (unregistering): Released all slaves