[  516.722446] bond0: (slave eth0): making interface the new active one
[  516.722544] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.908454] bond0: (slave eth0): Releasing backup interface
[  520.988650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.140282] bond0: (slave eth0): Releasing backup interface
[  525.167301] bond0 (unregistering): Released all slaves