[  520.881258] bond0: (slave eth0): making interface the new active one
[  520.881358] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.067096] bond0: (slave eth0): Releasing backup interface
[  525.133466] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.304045] bond0: (slave eth0): Releasing backup interface
[  529.331765] bond0 (unregistering): Released all slaves