[  538.560053] bond0: (slave eth0): making interface the new active one
[  538.560148] bond0: (slave eth0): Enslaving as an active interface with an up link
[  542.801198] bond0: (slave eth0): Releasing backup interface
[  542.898708] bond0: (slave eth0): Enslaving as an active interface with an up link
[  547.093777] bond0: (slave eth0): Releasing backup interface
[  547.121709] bond0 (unregistering): Released all slaves