[  516.941653] bond0: (slave eth0): making interface the new active one
[  516.941736] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.094700] bond0: (slave eth0): Releasing backup interface
[  521.161763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.316513] bond0: (slave eth0): Releasing backup interface
[  525.346524] bond0 (unregistering): Released all slaves