[  521.451365] bond0: (slave eth0): making interface the new active one
[  521.451453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.639481] bond0: (slave eth0): Releasing backup interface
[  525.700966] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.864992] bond0: (slave eth0): Releasing backup interface
[  529.898956] bond0 (unregistering): Released all slaves