Abstract
This paper discusses decentralized and centralized pre-congestion notification (PCN)-based measured-rate flow termination (FT) in the case of a single bottleneck. The paper finds out that asynchronous measurement periods between ingress–egress aggregates (IEAs) cause overtermination in the decentralized PCN although RFC6661 states that the operation of PCN is not affected if the starting and ending times of the measurement periods for IEAs are different. Also, the paper finds that the asynchronous measurement periods can prevent a FT for one IEA from terminating enough flows in one shot. Furthermore, the paper proves that overtermination occurs in the decentralized PCN due to asynchronous measurement periods regardless of the same or different round trip time (RTT) and synchronous measurement period with different RTTs. In contrast, the centralized PCN can avoid overtermination due to effects of the asynchronous measurement periods and different RTTs.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call