1 / 23

Part I: Routing Architecture in the DiffServ MPLS Networks

Introduction II: Routing Architecture in the DiffServ MPLS Networks Performance Analysis of Routing Algorithms Introduction to MaRS, QRS and EQRS. Part I: Routing Architecture in the DiffServ MPLS Networks. Differentiated Service Multi-Protocol Label Switch

zoltan
Télécharger la présentation

Part I: Routing Architecture in the DiffServ MPLS Networks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction II: Routing Architecture in the DiffServ MPLS NetworksPerformance Analysis of Routing AlgorithmsIntroduction to MaRS, QRS and EQRS

  2. Part I: Routing Architecture in the DiffServ MPLS Networks • Differentiated Service • Multi-Protocol Label Switch • Traffic Engineering in the DiffServ MPLS Networks • Routing in the DiffServ MPLS Networks

  3. Differentiated Service Figure 1 Differentiated Service Architecture Features: - PHB - Scalability

  4. Multi-Protocol Label Switch • Features: • Connection-oriented • Fast Forwarding • Label Stack • Advantages • Traffic Engineering • Applications • Virtual Private Network Figure 2 MPLS VPN Networks

  5. Traffic Engineering in the DiffServ MPLS Networks • Path Management: • Signaling Protocols: - CR-LDP and Extended RSVP • Constraint-based Routing • Traffic Assignment • Network State Information Dissemination • Network Management Figure 3 Interaction of traffic engineering components in an MPLS network

  6. Signaling Protocols Table 1 Comparisons between CR-LDP and ERSVP

  7. Routing in the DiffServ MPLS Networks • Constraint-based Routing • Route Pinning • Rerouting • Fast Rerouting • Optimized Rerouting • Rerouting to an alternate path Figure 4 Rerouting

  8. Part II: Performance Analysis of Routing Algorithms • Performance Metrics • Computation Complexity • Stability • Scalability • Feasibility • Analyzing Methods • Theoretical Analysis • Computer Simulation • Experimental Implementation

  9. Part III: Introduction to MaRS, QRS and EQRS • Structure • Capabilities Comparison • QRS • EQRS

  10. Structure • Simulation Engine • User Interface • Components Figure 5 An example target system

  11. Capabilities Comparison Table 2 Comparisons among MaRS, QRS and EQRS

  12. QRS: General Design Features: - Simplified RSVP -Realtime Traffic - QOSPF -CBQ Figure 6 General design and interactions between components of QRS

  13. QRS: QOSPF Features: - Two On-demand computation algorithms - Two link state update algorithms Figure 7 Design of QOSPF in QRS

  14. QRS: Traffic Scheduling Features: - CBQ - Three class levels Figure 8 Traffic processing and scheduling of Node and Link in QRS

  15. QRS: Some Results (1) Figure 9 Simulation 1: Tree Topology Figure 10 Throughput vs. time in Simulation 1

  16. QRS: Some Results (2) Figure 11 Simulation 2: Matrix Topology Table 3 Running Time in Simulation 2

  17. QRS: Some Results (3) Figure 12 Simulation 3: NSFNET Backbone Figure 13 Throughput vs. time in Simulation 3

  18. EQRS: General Design Features: -DiffServ -MPLS -Extended RSVP -NOMP -Multiple domains -With or without resource reserved Figure 14 General design and interactions between components of EQRS

  19. EQRS: Services Table 4 Workload and DS services in EQRS

  20. EQRS: Multiple Domains Figure 15 Hierarchical Domains Figure 16 A network with hierarchical domains

  21. EQRS: NOMP Functions: -Resource provision -Explicit route assignment -Network maintance Figure 17 Structure of NOMP

  22. EQRS: ERSVP • Extensions: • Two new objects: • LABEL_REQUEST • LABEL • As signaling protocol

  23. EQRS: Traffic Scheduling Notes: -Edge node: Classifier and marker -All nodes: Dropper and Queuer Figure 18 Dropper and Querer in EQRS

More Related