1. Traffic analysis and optimization of a mangement network
Author: Mikko Koivisto
Supervisor: Raimo Kantola
Seminar of Master's Thesis

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Agenda
Introduction and background
Used methods
Results and considerations
Conclutions
Future analysis
Seminar of Master's Thesis

3. Introduction and background
The idea of the thesis was adopted from Network Planning, Nokia Networks
Interconnections of a management network->optimization
Planning challenge: traffic should not cause any bottle necks
Traffic analysis->traffic behavior
Seminar of Master's Thesis

4. The management network
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Routing areas
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Methods
Traffic traces captured from the management network
Data analyzed:
Ratios of different packet types compared
Inter-arrival times calculated
Traffic loads calculated
Seminar of Master's Thesis

7. Measurement scenarios
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8. Measurement scenarios 2
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9. Results and considerations
The ratio of the routing traffic and the management action traffic
Size of the routing area
Few retransmissions -> buffer status
Use of the parallel 64 kbit/s DCC channel -> avoid packet losses
Inter-arrival times -> traffic intensity
DCC = Data Communication Channel
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10. Routing data vs management data
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11. Different routing traffic types, distributions
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12. Message types and their frame sizes
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Some figures
Traffic load rates
Measurement period 1: 37,6 kbit/s
Measurement period 3: 40,4 kbit/s
Peak value in traffic utilization: 88 kbit/s
IAT values
Phase 1 (period 1): mean value converge to 0,208, standand deviation to 0,224
Phase 3 (period 2): mean value converge to 0,101, standand deviation to 0,136
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Network utilization
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15. IAT (inter-arrival time) measurement 1, phase 1
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IAT measurement 2, phase 3
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DCC channels
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Conclusions
Planning of the routing area sizes: IS-IS level 1 routing traffic the most represented
Location of the IS-IS level 2 routers
Use of multiple DCC channels in SDH nodes
Inter-arrival time output, changes in the traffic intensity
Seminar of Master's Thesis

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Future analysis
Use of tools to simulate a management network (Opnet, NS)
Required models: transport model, OSI procols supported, IS-IS level 1 and 2 routing supported
-> More comprehensive study and deeper analysis
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Thank You!
Seminar of Master's Thesis