[  516.915129] bond0: (slave eth0): making interface the new active one
[  516.915203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.120405] bond0: (slave eth0): Releasing backup interface
[  521.241561] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.472214] bond0: (slave eth0): Releasing backup interface
[  525.501011] bond0 (unregistering): Released all slaves