[  520.721335] bond0: (slave eth0): making interface the new active one
[  520.721400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.944408] bond0: (slave eth0): Releasing backup interface
[  525.013038] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.171771] bond0: (slave eth0): Releasing backup interface
[  529.206775] bond0 (unregistering): Released all slaves