[  521.294525] bond0: (slave eth0): making interface the new active one
[  521.294623] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.528364] bond0: (slave eth0): Releasing backup interface
[  525.621399] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.810909] bond0: (slave eth0): Releasing backup interface
[  529.841790] bond0 (unregistering): Released all slaves