| Author | Nguyen Minh Tung |
| Call Number | AIT RSPR no.TC-05-18 |
| Subject(s) | Telecommunication--Traffic
|
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-05-18 |
| Abstract | Traffic Engineering is the process where data is routed through the network
according to a management view of the availability of resources and expected traffic. The
challenge of traffic engineering is how to make the most effective use of the available
bandwidth in a large Internet Protocol (IP) backbone network so that the best performance
characteristics from the same IP networks are achieved even in the event of congestion.
Traffic Engineering may be either under the control of manual operators or driven by
automated processes reacting to information fed back through routing protocols.
Multi Protocol Label Switching (MPLS) is a recent network technology that
addresses the traffic engineering issue by setting up explicit paths through the network
using Constraint-Based Routed Label Distribution Protocol (CR-LDP) and supports
Quality of Service (QoS). With CR-LDP, the label switching path (LSP) can be established
based on the traffic's constraints, and packets are label-switched onto the LSPs to reach
their destinations.
There are two innovative ideas in CR-LDP: The first of the innovative idea in CRLDP
is right in the capability of LSP preemption. LSP preemption allows a high-priority
traffic flow to preempt the low-priority traffic flow when there is not enough bandwidth for
conveying the high-priority flow. The second of innovative idea in Constraint-based
Routing is made the traffic engineering process automatic. The routing algorithm chooses a
path able to optimize one or more metrics such as: bandwidth, delay, monetary cost, and
jitter. Generally, a metric based on the hop count and on the bandwidth is used.
In this research study, Traffic Engineering is considered in IP network over MPLS.
With the MPLS domain, the Explicit Routing with traffic priority and without traffic
priority; the LSP preemption and capability to establish the LSP automatically have been
simulated. We evaluate the performance of network utilization in term of the throughput,
percentage packet loss as well as the bandwidth utilization. |
| Year | 2005 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-05-18 |
| Type | Research Study Project Report (RSPR) |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Teerapat Sanguankotchakorn; |
| Examination Committee(s) | Erke, Tapio J.;Poompat Saengudomlert; |
| Scholarship Donor(s) | Civil Aviation Training Center ofVietNam; |
| Degree | Research report (M.Sc.) - Asian Institute of Technology, 2005 |