[  521.733654] bond0: (slave eth0): making interface the new active one
[  521.733755] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.895425] bond0: (slave eth0): Releasing backup interface
[  525.959688] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.130087] bond0: (slave eth0): Releasing backup interface
[  530.165072] bond0 (unregistering): Released all slaves