http://i3xi5qxvbrngh3g6o7czwjfxwjzigook7zxzjmgwg5b7xnjcn5hzciad.onion/proposals/323-walking-onions-full.html
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;
; Note that when a single bandwidth changes, it can change _all_ of
; the indices in a bandwidth-weighted index, even if no other
; bandwidth changes. That's why we only pack the bandwidths
; here, and scale them as part of the reconstruction algorithm.
IndexSpec_Weighted = {
type: Indextype_Weighted,
; This index is constructed by assigning a weight to each relay,
; and then normalizing those weights.