Quality-of-service guarantees architecture with weighted fair shaping

摘要

Weighted Fair Queuing (WFQ), conducted for each flow at ATM nodes, is effective for ensuring fairness among differently behaving flows, and for preventing incremental delay as cells are transmitted through multiple nodes. Implemented thus in accordance with rates assigned to flows and actual cell transmission conditions, WFQ is known as "shaping". This paper proposes a new installable algorithm that dynamically adapts WFQ to each of multiple flows. The Quality-of-Service (QoS) guaranteed by this algorithm is also explained.