[  521.407480] bond0: (slave eth0): making interface the new active one
[  521.407587] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.579254] bond0: (slave eth0): Releasing backup interface
[  525.650664] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.812349] bond0: (slave eth0): Releasing backup interface
[  529.845411] bond0 (unregistering): Released all slaves