[  520.765233] bond0: (slave eth0): making interface the new active one
[  520.765308] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.936063] bond0: (slave eth0): Releasing backup interface
[  524.999144] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.165311] bond0: (slave eth0): Releasing backup interface
[  529.195269] bond0 (unregistering): Released all slaves