[  521.041846] bond0: (slave eth0): making interface the new active one
[  521.041937] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.275122] bond0: (slave eth0): Releasing backup interface
[  525.372603] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.568003] bond0: (slave eth0): Releasing backup interface
[  529.594920] bond0 (unregistering): Released all slaves