[  516.878981] bond0: (slave eth0): making interface the new active one
[  516.879081] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.116740] bond0: (slave eth0): Releasing backup interface
[  521.236253] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.467977] bond0: (slave eth0): Releasing backup interface
[  525.496937] bond0 (unregistering): Released all slaves