Rochester Institute of Technology (RIT) College of … · Rochester Institute of Technology (RIT)...

Rochester Institute of Technology (RIT)

College of Applied Sciences and Technology (CAST)

WAN/LAN planning and design (0614.774)

Graduate Project

OPNET

Submitted by: Suleiman Osman

Professor: Ron Fulle

Date: May 07, 2012

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TableofContentsIntroduction: ................................................................................................................................................. 4

Scenarios: .......................................................................................................................................... 4

Initial setting ................................................................................................................................................. 5

Network Properties ........................................................................................................................... 5

Traffic Matrix Editor .......................................................................................................................... 7

Delay Setting ..................................................................................................................................... 8

Availability Setting ........................................................................................................................... 8

First Scenario: Unprotected star and ring topology ..................................................................................... 9

Link design ...................................................................................................................................... 10

Grooming ........................................................................................................................................ 11

Dimensioning .................................................................................................................................. 12

Routing Results ............................................................................................................................... 13

Availability analysis ........................................................................................................................ 14

Topology connection ....................................................................................................................... 14

Network cost ................................................................................................................................... 15

Traffic growing ............................................................................................................................... 16

Failure Analysis .............................................................................................................................. 17

Second Scenario: 1+1 protected star and ring topology.............................................................................. 19

Link Design ...................................................................................................................................... 20

Grooming ........................................................................................................................................ 21

Dimensioning .................................................................................................................................. 22

Routing Results ............................................................................................................................... 23


Topology connection ...................................................................................................................... 25

Network cost ................................................................................................................................... 26

Traffic growing ............................................................................................................................... 27


Third scenario: Unprotected Star Topology ................................................................................................ 30

Link Design ..................................................................................................................................... 31

Grooming ........................................................................................................................................ 32

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Dimensioning .................................................................................................................................. 32

Routing Results ............................................................................................................................... 33



Network cost ................................................................................................................................... 36

Traffic growing ............................................................................................................................... 37


Fourth scenario: 1+1 protected Star Topology ........................................................................................... 41

Link Design ..................................................................................................................................... 42

Grooming ........................................................................................................................................ 42

Dimensioning .................................................................................................................................. 43

Routing Results ............................................................................................................................... 44



Network cost ................................................................................................................................... 48

Traffic growing ............................................................................................................................... 49


Scenario Comparison .................................................................................................................................. 53

Total Capacity ................................................................................................................................. 53

Total utilization ............................................................................................................................... 54

Node Cost ........................................................................................................................................ 55

Link Cost ......................................................................................................................................... 56

Total cost ......................................................................................................................................... 57

Conclusion .................................................................................................................................................. 58

References .................................................................................................................................................. 58

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Introduction: In order to get the full grade in the Graduate project, Professor R Fulle asks every student in

Networking planning and design class to do the Graduate project by using OPNET software.

What is OPNET? Historically, “Alain Cohen, a 20-year-old MIT student, developed OPNET in

1986 Alain Cohen and his classmate Steven Baraniuk developed a prototype data network

modeling and simulation system they called "Optimized Network Engineering Tools", or

OPNET for short”..1

Today, OPNET Technologies, Inc. is producing many related software and service such as:

Application performance management

Network planning and engineering

Network research and development

The goal of the project is to understand how to implement such great optical network by using

OPNET SP Guru Transport Planner 17.0.

To explore the tools function, we need to dive in the software and examine different scenarios

and topologies.

The target area, where the network will be implemented, is the Middle East area. It is located in

the southwestern region of the Asian continent.it consists of several Arabic countries called Gulf

Arabic region.

Scenarios:In this project we avoid to build Mesh topology because it is clear that Mesh topology has the

best deal with network failures with high network cost. However the project will be designed in

four scenarios. The first scenario will be mixed of unprotected star and ring topologies while the

second scenario presents mix of 1+1 protected star and ring topologies. The third scenario will

present unprotected star topology and the last scenario will show the 1+1 protected star topology.

The project will connect 9 cities among 7 countries

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Dubai, Unites Arab Emirates

Abu dabhi, Unites Arab Emirates

Daoha, Qatar

Manamma, Bahrain

Kuwait, Kuwait

Bagdad, Iraq

Sana, Yemen

Riyad, Saudi Arabia

Jeddah, Saudi Arabia

Some of properties will be applied to the design to compare among these scenarios in some of

aspects such as:

Cost analysis

Failure analysis

Growth analysis

Availability analysis

Initial setting

All the initial setting will be the same for all the scenarios.

Network Properties

First step it has to be done is the network properties and in order to compare between scenarios

fairly, common network properties setting are applied to all four scenarios.

The screen shot figure below shows:

Opaque mode is set.

Regenerate via DXC to use ADD DROP Multiplexer.

OC-192 is used so that when failure analysis is done, it shows something significant.

The default WDM line system has been set.

Using of EOCC with DXC+OXC to switch wavelength and SONET traffic.

TDM nomenclature is SONET and KM as Distance unit.

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TrafficMatrixEditorSet the Traffic through the Traffic Matrix Editor. First select the OCH and DCL Traffic which been set STS‐

12 DCL Layer and OC‐192 OCH Layer. Then create the traffic as Random Traffic with a threshold of (1 as

minimum) and (10 as maximum) in terms of wavelength unit.

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Delay Setting Default Delay setting is set as 0.00500 ms/km.

Availability Setting Common Availability Setting has applied to all scenarios which are 0.99999 and it is illustrated below.

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FirstScenario:Unprotectedstarandringtopology

As shown above mix of star and ring topology is mapped among 9 cities. Riyad is formed as the center of the star topology which is connected with ring topology at the other side.

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Link design The following figures show the link design with the regeneration sites and OA.

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GroomingIn this step, Grooming parameters has been set and we come out with the results of the Grooming traffic.

The Grooming results show the performance of the capacity, cost and utilization before and after Optimization with using of OC-192 as target traffic matrix.

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Dimensioning The following figures show the process of dimensioning, dimensioning results and result of dimensioning web report. (With 50% Threshold).

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Results show that the OCH link utilization is 74.5%.

RoutingResultsAs shown below, the Routing results for both OCH and DCL layers. It presents the link utilization 74.5% and 38.3% respectively. the routed capacity is 100%.

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Availability analysis OCH_0 availability summary illustrated below with Average availability and expected loss of traffic.

Topologyconnection

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The figures above show the DCL and OCH topologies with connection parameters such as number of nodes and links, network connectivity percent, node degree, link capacity, node ports and so forth.

Network cost The network cost for this scenario come up with 354,389.00 by using the default OPNET equipment.

The figure below presents the cost with more details.

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Traffic growing With increasing of 20 % of the traffic, the link utilization is increased and the topology could handle 91.5% of the new traffic.

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Failure Analysis Two types of failures has been added to the network: link failure and node failure

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In the link failure, the overview of the failures shows two links has been failed (Riyad – Bagdad) – (Riyad – Manamma). The traffic is affected and 101 out of 217 wavelengths are lost in OCH layer.

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In the node failure, the overview of the failure come out with Riyad Node is failed. And it presents the affected traffic of this failure. 147 out of 217 wavelengths are lost in OCH layer.

Second Scenario: 1+1 protected star and ring topology

As shown below mix of star and ring topology is mapped among 9 cities. It is the same as the first scenario network lay out with 1+1 protection is applied to this scenario.

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LinkDesignThe following figures show the link design with the regeneration sites and OA.

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Grooming In this step, Grooming parameters has been set and we come out with the results of the Grooming traffic.


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DimensioningThe following figures show the process of dimensioning, dimensioning results. (With 50% Threshold and 1+1 protection).

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Routing Results As shown below, the Routing results for both OCH and DCL layers. It presents the link utilization 78.75% and 84.93% respectively. And it shows the working and protection Hopes.

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OCH_0 availability summary and OCH_DCL _0 Grooming summary are illustrated below with Average availability and expected loss of traffic.

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Topology connection

The figures above show the DCL and OCH topologies with connection parameters such as

number of nodes and links, network connectivity percent, node degree, link capacity, node ports

and so forth.

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Traffic growing

With increasing of 20 % of the traffic, the link utilization is increased and the topology could handle 88.8% of the new traffic.

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Failure Analysis Two types of failures have been added to the network: link failure and node failure.

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In the link failure, the overview of the failures shows two links has been failed (Riyad – Bagdad) – (Riyad – Manamma). The traffic is affected and 6 out of 84 wavelengths are lost in OCH layer.

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In the node failure above, the overview of the failure come up with Riyad Node is failed. And it presents the affected traffic of this failure. 34 out of 84 wavelengths are lost in OCH layer.

Third scenario: Unprotected Star Topology

As shown below star topology is mapped among 9 cities. Dubai is the center of the network and it is connected to all the 8 cities with no protection.

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Link Design The following figures show the link design with the regeneration sites and OA.

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Grooming In this step, Grooming parameters has been set and we come up with the results of the Grooming traffic.


DimensioningThe following figures show the process of dimensioning, dimensioning results. (With 50% Threshold).

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Routing Results As shown below, the Routing results for both OCH and DCL layers. It presents the link utilization 70.00% and 81.25% respectively. With 100% capacity routed.

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Availability analysis OCH_0 availability summary and OCH_DCL _0 Grooming summary are illustrated below with Average availability and expected loss of traffic.

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Topology connection


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Failure Analysis Two types of failures has been added to the network: link failure and node failure

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In the link failure above, the overview of the failures shows two links has been failed (Dubai – Bagdad) – (Dubai – Jeddah). The traffic is affected and 85 out of 236 wavelengths are lost in OCH layer.

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In the node failure above, Dubai node has been failed which means that the entire network will be failed. Definitely, the traffic will be affected and all the wavelengths are lost. Another node failure is applied to Abu dabhi node and the affected traffic is shown below. And 58 out of 236 are lost.

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Fourth scenario: 1+1 protected Star Topology

As shown below star topology is mapped among 9 cities. Dubai is the center of the network and it is connected to all the 8 cities with 1+1 protection.

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Link Design The following figures show the link design with the regeneration sites and OA.

Grooming

In this step, Grooming parameters has been set and we come out with the results of the Grooming traffic.

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The Grooming results show the performance of the capacity, cost and utilization before and after Optimization with using of OC-192 as target traffic matrix with 1+1 protection.

DimensioningThe following figures below show the process of dimensioning, dimensioning results. (With 50% Threshold and 1+1 protection).

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Routing Results As shown below, the Routing results for both OCH and DCL layers. It presents the link utilization 71.97% and 54.46% respectively. With 100% capacity routed and working and protection Hopes.

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OCH_0 availability summary and OCH_DCL _0 Grooming summary are illustrated below with Average availability and expected loss of traffic.

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Topology connection


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Network cost The network cost for this scenario come up with 672,585.00 by using the default OPNET equipment and 1+1 protection.


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Failure Analysis Two types of failures have been added to the network: link failure and node failure.

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In the link failure above, the overview of the failures shows two links has been failed (Dubai – Bagdad) – (Dubai – Jeddah). The traffic is affected and 98 out of 275 wavelengths were lost in

OCH layer.

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In the node failure above, Dubai node has been failed which means that the entire network will be failed. Definitely, the traffic will be affected and all the wavelengths are lost. Another node failure is applied to Abu dabhi node and the affected traffic is shown below. It shows that 64 out of 236 are lost.

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Scenario Comparison

Total Capacity

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Total utilization

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Node Cost

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Link Cost

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Total cost

The comparison tables and graphs come with results that the mix of Star and Ring topology has the least cost with the best overall performance. Moreover, the risk in the star topology implementation is more clearly especially when the center node is failed. To be more specific the best overall performance is the 1+1 protected of mix star and ring topology with cost of 241,275.00 and utilization of 84.93% and total capacity of 3,264.00.

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Conclusion In this project, we focus on the demonstrating of the OPNET tools rather than the quality of the network. I put high traffic over these scenarios intentionally. So, we can observe important parameters and results.

If we would like to build a great optical network, we will come up with more details and factors that close to the reality.

To sum up, the OPNET SP GURU Transport Planner 17.0 is such great software that has the powerful tools. During this project we have learned significant facilities and features that can help in near future.

References1- http://www.cs.tut.fi/kurssit/TLT-2707/lecture12.pdf 2- http://www.rit.edu/cast/ectet/Opnet/OpnetProjects.html

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