[  521.684839] bond0: (slave eth0): making interface the new active one
[  521.684921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.834780] bond0: (slave eth0): Releasing backup interface
[  525.912821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.064336] bond0: (slave eth0): Releasing backup interface
[  530.098979] bond0 (unregistering): Released all slaves