Yetanudder GPS example...

connection ?i {(aik, Lik)}

1 1/2 {(0,6)}

2 1/4 {(0,4)}

3 1/4 {(0,1)}

But suppose connections 2 and 3 “belong” to the same user:

Any bandwidth not used by connection 2 goes to connection 3 (and vice versa), before being offered to the other connection[s]