[  521.529967] bond0: (slave eth0): making interface the new active one
[  521.530058] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.721481] bond0: (slave eth0): Releasing backup interface
[  525.825633] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.013044] bond0: (slave eth0): Releasing backup interface
[  530.042963] bond0 (unregistering): Released all slaves