[  516.564403] bond0: (slave eth0): making interface the new active one
[  516.564479] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.795716] bond0: (slave eth0): Releasing backup interface
[  520.926037] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.142983] bond0: (slave eth0): Releasing backup interface
[  525.173965] bond0 (unregistering): Released all slaves