[  517.052014] bond0: (slave eth0): making interface the new active one
[  517.052121] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.310851] bond0: (slave eth0): Releasing backup interface
[  521.407862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.588010] bond0: (slave eth0): Releasing backup interface
[  525.614000] bond0 (unregistering): Released all slaves