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Research on Routing Optimization Issues Based on Traffic Balancing

Author: TianMing
Tutor: LanJuLong
School: PLA Information Engineering University
Course: Communication and Information System
Keywords: Routing algorithm Flow balance Route optimization Link criticality Equal Cost Multipath More than the next-hop routing Routing switch
CLC: TN915.02
Type: Master's thesis
Year: 2010
Downloads: 47
Quote: 0
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Abstract


Traditional IP routing protocols Shortest Path First routing mode easily lead to congestion on the shorter path, while the other link is idle. Therefore, traditional routing mode to strengthen the control of the route, to flow balanced distribution route optimization algorithm is one of the focuses of the research. The papers explore generally oriented topics \proposed and studied one of many optimization program based on a balanced overall network traffic routing. First of all, on the Shortest Path First (OSPF) Protocol Equal Cost Multipath optional analysis and optimization; thus the optional set of next-hop link to expand the research to the next hop routing mechanism optimization algorithm; Finally, the next hop routing online switching algorithm to achieve load balancing, avoid bursty traffic congestion caused. To sum up, the main work is as follows: 1. Optimization algorithm of lCERs that proposed the equivalent multipath routing based on the criticality of the link. The algorithm is characterized by the link criticality the average task link in the network load, the average task lightest load path between the equivalent path routing to minimize conflicts between each pair of nodes, but also to avoid the out-of-order packets. Simulation results show that the algorithm LCER than randomly selected and split algorithms reduce competition in the \Proposed under the multi-hop routing based on distance and link criticality optimization algorithm DLCR. The algorithm in all possible next hop resources under the premise of having a shorter path and lower link key degrees priority will be selected, thereby reducing the consumption of network resources, to avoid routing conflicts, the next-hop link. Simulation results show that the algorithm avoids the path to compete in the \Algorithm parameters according to different optimization goals flexible settings. 3 design algorithm based on balanced flow under the multi-hop routing switch the TBMS. The algorithm for bursty traffic may cause part of link congestion problem, the use of multi-hop routing mechanism under a rich set of candidate paths, switch to another path in the link utilization when the trigger condition is met in a timely manner, to avoid the link the overload congestion. Due to the strict definition of the switching timing, to achieve better packet order guarantee performance, while avoiding the frequent switching path routing oscillation. The simulation results show that the scheme in the packet loss rate and throughput performance while, link utilization balanced relative DLCR algorithm has also improved.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Communication network structure and design
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