[  521.130439] bond0: (slave eth0): making interface the new active one
[  521.130556] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.326748] bond0: (slave eth0): Releasing backup interface
[  525.405206] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.556476] bond0: (slave eth0): Releasing backup interface
[  529.589403] bond0 (unregistering): Released all slaves