[  520.680824] bond0: (slave eth0): making interface the new active one
[  520.680934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.878553] bond0: (slave eth0): Releasing backup interface
[  524.959129] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.098161] bond0: (slave eth0): Releasing backup interface
[  529.119101] bond0 (unregistering): Released all slaves