[  520.840947] bond0: (slave eth0): making interface the new active one
[  520.841056] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.004834] bond0: (slave eth0): Releasing backup interface
[  525.064570] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.234664] bond0: (slave eth0): Releasing backup interface
[  529.274377] bond0 (unregistering): Released all slaves