[  521.355876] bond0: (slave eth0): making interface the new active one
[  521.355969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.515033] bond0: (slave eth0): Releasing backup interface
[  525.589333] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.746238] bond0: (slave eth0): Releasing backup interface
[  529.778030] bond0 (unregistering): Released all slaves