[  516.604676] bond0: (slave eth0): making interface the new active one
[  516.604763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.802647] bond0: (slave eth0): Releasing backup interface
[  520.919483] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.087984] bond0: (slave eth0): Releasing backup interface
[  525.117969] bond0 (unregistering): Released all slaves