[  510.848968] bond0: (slave eth0): making interface the new active one
[  510.849058] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.023868] bond0: (slave eth0): Releasing backup interface
[  515.100369] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.254346] bond0: (slave eth0): Releasing backup interface
[  519.288478] bond0 (unregistering): Released all slaves