[  521.557797] bond0: (slave eth0): making interface the new active one
[  521.557901] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.708515] bond0: (slave eth0): Releasing backup interface
[  525.777579] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.937014] bond0: (slave eth0): Releasing backup interface
[  529.966958] bond0 (unregistering): Released all slaves