Delay Differentiation and Adaptation in Core Stateless networks
نویسندگان
چکیده
We present a core-stateless quality of service architecture for achieving delay differentiation between flows. There are two key components in our approach: 1. Per-class per-hop relative average delay: the average queueing delay perceived by the packets in a delay class at a link is inversely proportional to the delay weight of the class. 2. Per-flow end-to-end delay class adaptation: the delay class of a flow is dynamically adjusted based on its perceived end-to-end delay in order to maintain the desired end-to-end average delay requirement of the flow. We show through simulations and analysis that these two components can, in concert, support end-to-end delay differentiation between flows using only simple mechanisms at the core routers in the network.
منابع مشابه
Toward Service Differentiation Based on a Semi-Stateless Approach for Mobile Ad Hoc Networks
This paper discusses an approach of QoS service differentiation in mobile ad hoc networks. We aim to investigate the performances of the proposed semi-stateless approach, named “MARS”, over the existing stateless approaches. Mars supports both real-time UDP traffic, and best-effort UDP and TCP traffic. The main objective of MARS is to minimize the end-to-end delay of traffic. The proposed model...
متن کاملDelay Management in Core-Stateless Networks
-Many packet scheduling mechanisms have been proposed to provide rate and delay control to flows. The mechanisms providing strict delay bounds require per-flow state and complex packet classification, which hamper their deployment on a large scale. This paper presents a scheduling mechanism for delay control that does not require per-flow state in interior network nodes (a.k.a. corestateless ne...
متن کاملStateless RD Network Services
Rate-Delay (RD) Network Services constitute a promising differentiated-services architecture for multi-provider networks, by offering users a choice between high throughput or low queuing delay at bottleneck links. An RD router provides service differentiation via transmission scheduling and by managing two FIFO queues. To ensure strict delay bounds, an RD router tracks arrival times of packets...
متن کاملA Novel Fuzzy Logic Base Scheduling Mechanism for Service Differentiation in IP Networks
Quality of Service (QoS) refers to a set of rules or techniques that help the network administrators use the available network resources optimally to manage the effects of congestion and to treat the applications according to their needs. The differentiated services architecture (DiffServ) allows providing quality of service to users. The major DiffServ premise is that individual flows with sim...
متن کامل