[  521.540179] bond0: (slave eth0): making interface the new active one
[  521.540295] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.705212] bond0: (slave eth0): Releasing backup interface
[  525.772858] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.928285] bond0: (slave eth0): Releasing backup interface
[  529.957134] bond0 (unregistering): Released all slaves