[  521.665803] bond0: (slave eth0): making interface the new active one
[  521.665903] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.836073] bond0: (slave eth0): Releasing backup interface
[  525.898936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.064670] bond0: (slave eth0): Releasing backup interface
[  530.105249] bond0 (unregistering): Released all slaves