[  518.944213] bond0: (slave eth0): making interface the new active one
[  518.944298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.166169] bond0: (slave eth0): Releasing backup interface
[  523.277403] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.446825] bond0: (slave eth0): Releasing backup interface
[  527.480744] bond0 (unregistering): Released all slaves