link quality balancing
Idea: Fragment traffic in proportion to individual link throughputs
- For each link, compute a relative MTU
- For fastest link, use optimum MTU
- On all other links, use a proportionately smaller one
- Fragment packets to fill MTU-sized buckets
- Last fragment arrival times are the same on each link
- Guarantees no inter-round reordering; only possible reordering occurs in the same round
- Requires no information on queue lengths
- Work conserving; provides maximal link usage