It's a generic Alivio hub, because the spacer between the cassette and hub is missing, the lock ring is just about touching the nut holding in the bearings. Since it's so close to the lock ring, the tool can't be inserted deep enough to catch the splines on the lock ring. Typically a missing spacer will result in a wobbly cassette, but with this combo it's on pretty good and I didn't know it and had used it that way for about a year.