[  516.910264] bond0: (slave eth0): making interface the new active one
[  516.910337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.111649] bond0: (slave eth0): Releasing backup interface
[  521.232476] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.461064] bond0: (slave eth0): Releasing backup interface
[  525.489971] bond0 (unregistering): Released all slaves