[  521.105563] bond0: (slave eth0): making interface the new active one
[  521.105644] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.354422] bond0: (slave eth0): Releasing backup interface
[  525.461180] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.644010] bond0: (slave eth0): Releasing backup interface
[  529.672014] bond0 (unregistering): Released all slaves