[  513.823072] bond0: (slave eth0): making interface the new active one
[  513.823147] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.041937] bond0: (slave eth0): Releasing backup interface
[  518.151632] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.320047] bond0: (slave eth0): Releasing backup interface
[  522.361065] bond0 (unregistering): Released all slaves