[  519.981944] bond0: (slave eth0): making interface the new active one
[  519.982026] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.172042] bond0: (slave eth0): Releasing backup interface
[  524.246039] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.393730] bond0: (slave eth0): Releasing backup interface
[  528.424785] bond0 (unregistering): Released all slaves