[  521.337559] bond0: (slave eth0): making interface the new active one
[  521.337641] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.515426] bond0: (slave eth0): Releasing backup interface
[  525.568024] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.746096] bond0: (slave eth0): Releasing backup interface
[  529.777863] bond0 (unregistering): Released all slaves