[  517.372832] bond0: (slave eth0): making interface the new active one
[  517.372934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.627035] bond0: (slave eth0): Releasing backup interface
[  521.752503] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.982072] bond0: (slave eth0): Releasing backup interface
[  526.022062] bond0 (unregistering): Released all slaves