Modulates traffic entry into a telecommunications network in order to avoid congestive collapse resulting from oversubscription.
Classification of congestion control algorithms
Among the ways to classify congestion control algorithms are:
- By type and amount of feedback received from the network: Loss; delay; single-bit or multi-bit explicit signals
- By incremental deployability: Only sender needs modification; sender and receiver need modification; only router needs modification; sender, receiver and routers need modification.
- By performance aspect: high bandwidth-delay product networks; lossy links; fairness; advantage to short flows; variable-rate links
- By fairness criterion: max-min, proportional, “minimum potential delay