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Performance analysis of prioritized buffer management in photonic packet switches for diffserv assured forwarding (2002).
| Content Provider | CiteSeerX |
|---|---|
| Author | Harai, Hiroaki Murata, Masayuki |
| Abstract | We investigated the photonic packet switch architecture that enables a high node throughput and provides priority services. Previously, we proposed PBSO (partial buffer sharing with overwriting) method that enables prioritized buffer management to control an optical buffer [1]. The PBSO method is based on a single queue and its complexity is O(p), where p is the number of priority classes. PBSO can be used to provide different levels of drop precedence in DiffServ (Differentiated Services) Assured Forwarding. In this paper, we propose an analytical method of PBSO where p =2. We assess the accuracy of the analytic method. We show that PBSO improves the packet loss probability in each priority class more than the existing PBS (partial buffer sharing) does, and that it can be used for prioritized buffer management of an optical buffer. PBSO is especially effective when the arrival rate of higher priority class packets is much lower than that of lower priority class packets. In this case, PBSO dramatically improves the performance of higher priority class packets while the degradation in the performance of lower priority class packets is small. In PBSO, a larger number of higher priority class packets can be accepted at a given packet loss probability than in PBS or non-priority method. |
| File Format | |
| Publisher Date | 2002-01-01 |
| Access Restriction | Open |
| Subject Keyword | Priority Class Packet Prioritized Buffer Management Performance Analysis Photonic Packet Switch Diffserv Assured Forwarding Packet Loss Probability Priority Class Optical Buffer Partial Buffer Photonic Packet Switch Architecture Differentiated Service Priority Service High Node Throughput Drop Precedence Assured Forwarding Different Level Single Queue Pbso Method Analytic Method Analytical Method Buffer Management Arrival Rate Non-priority Method |
| Content Type | Text |
