Traffic analysis and optimization of a mangement network

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Traffic analysis and optimization of a mangement
network

• Author Mikko Koivisto
• Supervisor Raimo Kantola

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Agenda

• Introduction and background
• Used methods
• Results and considerations
• Conclutions
• Future analysis

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Introduction and background

• The idea of the thesis was adopted from Network
  Planning, Nokia Networks
• Interconnections of a management
  network-gtoptimization
• Planning challenge traffic should not cause any
  bottle necks
• Traffic analysis-gttraffic behavior

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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

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Measurement scenarios
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Measurement scenarios 2
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Results and considerations

• The ratio of the routing traffic and the
  management action traffic
• Size of the routing area
• Few retransmissions -gt buffer status
• Use of the parallel 64 kbit/s DCC channel -gt
  avoid packet losses
• Inter-arrival times -gt traffic intensity

DCC Data Communication Channel
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Routing data vs management data
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Different routing traffic types, distributions
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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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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

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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
• -gt More comprehensive study and deeper analysis

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Thank You!