[  521.751199] bond0: (slave eth0): making interface the new active one
[  521.751319] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.919542] bond0: (slave eth0): Releasing backup interface
[  526.005006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.147492] bond0: (slave eth0): Releasing backup interface
[  530.182482] bond0 (unregistering): Released all slaves