Netw410

In: Computers and Technology

Submitted By elseewy
Words 2098
Pages 9
Overview
In this lab, we will compare the speed and accuracy of different traffic representations: explicit traffic, background traffic, and hybrid traffic. The network used in the lab is a model of a company that provides video-on-demand services to 100 users.
The company would like to introduce three classes of service for its clients: gold (ToS = 3), silver (ToS = 2) and bronze (ToS = 1). To provide differentiated treatment for the different service classes, Weighted Fair Queuing (WFQ) has been configured on the access router. In this lab, we will predict the delay for each class of service and compare the results obtained using the different traffic modeling approaches.

Objectives and Methodology

* Create a simple network with explicit traffic and run a simulation. * Replace explicit traffic with background traffic and rerun the simulation. * Replace background traffic with hybrid traffic and rerun the simulation. * Assess and compare the speed and accuracy of the three traffic-modeling approaches.

Explanation and Background
In the real world, one of the most important jobs a network manager can do is manage the traffic on the network. If the traffic doesn’t flow, the network is not exactly a credit to its operators. In addition, we now deal with many different types of traffic that are particular to certain applications and architectures, the most obvious examples being voice and video traffic.
In these applications, the number one demand is for low delay. Other applications may have different demands, such as high throughput, high reliability, or high security, which are more important then delay.
OPNET will very accurately model three types of traffic.

a. Explicit Traffic: This is the traffic we especially want to test and monitor. This traffic, be it TCP, HTTP, or UDP voice, is explicitly modeled, packet by packet, and we can retrieve…...

Similar Documents

Network Design Proposal for Retail Technologies Corporation

...Network Design Proposal for Retail Technologies Corporation NETW410, Enterprise Network Design Team Leader: Juba Cochran Team Members: Brian Perez, Matthew Smith November 18, 2010 Table of Contents Executive Summary………………………………………………………………………….........2 Introduction……………………………………………………………….....................................3 Customer Introduction……………………………………………………………………….........4 Organizational Goals …………......5 Organizational Constraints...............................................................................................................6 Technical Goals of Existing Network..............................................................................................7 Technical Constraints of Existing Network.......………………………………………………..…8 Existing Network Design Analysis...……………………………………………………………...9 Technical Goals of New Network Design...……………………………………………………..10 Technical Constraints of New Network Design.....……………………………………………...11 New Network Design Analysis, Including Security………………………………….............12-19 Implementation Schedule……………………………………………………………….......…....20 Testing of The New Network……………………………………………………………............21 Budget............................................................................................................................................22 Detailed Summary.........................................................................................................................23 Detailed......

Words: 5466 - Pages: 22

Network410

...NETW410 Lab 4: Connecting Point A to Point B Lab Report 1. How should an Internet connection be made for the current campus? Why did you select this option over the others? AT&T is the carrier providing service to the existing campus as well as the new campus. Examine the offerings for Internet access to select the one that should be used. (10 points) Since there are multiple locations that require large amounts of bandwidth I would recommend the site connect to the internet through Fiber optics. I recommend fiber because of the high demand for bandwidth with today's technology. Fiber also has a very high tolerance for external interference. AT&T currently offers a high speed fiber network that would fit perfectly in this environment. 2. How should the existing and new campus locations be connected to each other? (10 points) When connecting the 2 campuses together I would definitely recommend running a private link between the 2. You would typically be ISDN, frame relay or Ethernet, depending on the distance, amount of speed required, and the amount of money you want to spend. 3. Should the two locations share an Internet connection? (10 points) Since there will be a lot of traffic on the network I would recommend each site connect to the internet separately. 4. Compare the advantages, disadvantages, and cost of fiber optic cable, 5 GHz wireless bridges, and free space optics as a means to interconnect the campus buildings to the IT wing of......

Words: 599 - Pages: 3

Netw410 Week 4 Lab

...NETW410 Week 4 Lab Joseph Lymas NETW410, Afzal 8/3/2013 Lab 4: Connecting Point A to Point B 1. How should an Internet connection be made for the current campus? Why did you select this option over the others? AT&T is the carrier providing service to the existing campus as well as the new campus. Examine the offerings for Internet access to select the one that should be used. The internet connection should be made through DSL connection with Category 5 CM-rated UTP cable for the current campus because this will increase security ant reliability. 2. How should the existing and new campus locations be connected to each other? The should be connected to each other by a 2.4GHz 802.11b open wireless network whose access points are mounted on overhead light poles outside of each building. 3. Should the two locations share an Internet connection? Yes 4. Compare the advantages, disadvantages, and cost of fiber optic cable, 5 GHz wireless bridges, and free space optics as a means to interconnect the campus buildings to the IT wing of the Administration Building. Fiber optic cable, 5 GHz wireless bridges are an inexpensive and reliable way to interconnect the campus buildings to the IT wing of the Administration Building 5. What would be required to interconnect the existing campus and the new campus to each other using fiber optic cable laid within the hiking trail right of way? A single IP addressing scheme for the entire campus and a open wireless network...

Words: 352 - Pages: 2

Netw360 Week 1 Ilab

...NETW410 Week 1 Lab Report NETW410, Professor Current Date: 1/11/14 Lab 1: OPNET LAN Modeling Tutorial ------------------------------------------------- ------------------------------------------------- Week 1 iLab Report The first objective in the LAN Modeling tutorial is Setting Up the Scenario. The final step in setting up your scenario appears below. 1. (30 points) Once your project is created (after Step 6 above), your workspace will contain a map of the United States. Your project and scenario name can be seen in ITGuru’s top window border in the form of Project: <project name> Scenario: <scenario name>. Capture a screenshot of your new project workspace that clearly shows your project and scenario name, and paste it below. 2. (40 points) In college-level paragraph(s), describe how background traffic affects both e-mail data and VoIP data. In this week’s lab exercise, we had the opportunity to create a network simulation from the ground up using OpNet IT Guru. The purpose of the exercise was to gain familiarity with OpNet functions along with network objects and associated behavior based on the configuration of network variables. Some of these objects include Application Definitions, Profile Definitions, Subnets, and the various means of connecting these components in a topology. The lab exercise itself provided a foundation for creating a simulated environment that was focused on evaluating the impact of background link load...

Words: 681 - Pages: 3

Netw410 Week 4 Lab Report

...NETW410 Week 4 Lab Report To complete the Week 4 Lab Report, answer the questions below concerning the Network Design Lab Scenario linked from Step 2 of the iLab page. Please use the template starting on Page 2 and submit it to the Week 4 iLab Dropbox by the due date. Have fun while learning. Alexander Davis NETW410, Professor Adams 28 March 2014 Lab 4: Connecting Point A to Point B Lab Report 1. How should an Internet connection be made for the current campus? Why did you select this option over the others? AT&T is the carrier providing service to the existing campus as well as the new campus. Examine the offerings for Internet access to select the one that should be used. (10 points) The Internet connection should be made through the DSL connection with Cat-5 CM-rated UTP cable for the current campus because this will increase security ant reliability. 2. How should the existing and new campus locations be connected to each other? (10 points) The Existing campus locations should be connected to each other via fiber optic cable. Fiber optic cables are less expensive; also there is less signal degradation, it’s non-flammable, and lastly extremely lightweight compares to the competitors. 3. Should the two locations share an Internet connection? (10 points) Yes because paying for two separate Internet connection methods would be pointless for this scenario. Sharing one connection is more cost effective. 4. Compare the advantages, disadvantages,......

Words: 544 - Pages: 3

Vddfdf

...NETW410 Network Design Lab Scenario The following description of a network will be used for a series of network design problems that have been incorporated into the NETW410 weekly labs. Description of the Organization The organization in question is a community college with a single multibuilding campus. As the local area grows in population, this campus is experiencing a corresponding growth in enrollment. In order to meet this growth in on-campus students as well as accommodate the demand for online courses, the school is redesigning the network. As the main source of funding for the school is revenue from a property tax and previously approved bond issue, the funds must be spent in a fiscally prudent manner while still delivering the required network improvements. The administration, in consultation with the elected board of directors, the student body, the population of the taxing district, and the faculty, has determined the following improvements are needed. Immediate Goals Build a new IT wing onto the administration building to centralize all of the servers that are currently located in a closet in each of the individual buildings. Connect all of the buildings to the new IT wing of the administration building. Provide controlled wireless access for the students in each classroom. Provide open wireless access for the students and the local population in the areas outside of each building. Provide a high-speed wired network connection to......

Words: 985 - Pages: 4

Netw410 Week 7 Ilab

...NETW410 Week 7 Lab Report To complete the Week 7 Lab Report, answer the questions below that appear in your OPNET lab instructions, downloaded in Step 3 of the Week 7 iLab page. Please use the template starting on Page 2 and submit it to the Week 7 iLab Dropbox by the due date. Have fun while learning. Your Name NETW410, Professor’s Name Current Date Lab 7: Traffic Modeling Lab Report 1. Capture a screen shot of the results screen and paste it into your answer sheet. (7 points) 2. What do the stats show about the traffic entering the cloud? (7 points) This graph depicts the total traffic entering the cloud 18Mbps at the rate of 1500pps. This is due to the three flows sending traffic with each being 6Mbps at the rate of 500pps. 3. Paste a shot of this screen into your worksheet. (7 points) 4. What do you observe about the packet delay related to the ToS we assigned? (7 points) The delay stayed constant throughout the test showing no change. 5. Why does this simulation run so much quicker than the first one? (7 points) This simulation was running in the background using less memory, only about 20Mb. 6. What do you observe about the queuing delays in both scenarios? (7 points) The delay is higher for the background data. 7. The first panel compares the queuing delays between the three scenarios. Paste a shot of this panel in your answer sheet. (7 points) 8. How do you compare these results? (7 points) The hybrid and background traffic......

Words: 365 - Pages: 2

Week 7 410 Lab Report

...NETW410 Week 7 Lab Report To complete the Week 7 Lab Report, answer the questions below that appear in your OPNET lab instructions, downloaded in Step 3 of the Week 7 iLab page. Please use the template starting on Page 2 and submit it to the Week 7 iLab Dropbox by the due date. Have fun while learning. NETW410, Professor’s Name Current Date Lab 7: Traffic Modeling Lab Report 1. Capture a screen shot of the results screen and paste it into your answer sheet. (7 points) 2. What do the stats show about the traffic entering the cloud? (7 points) It show that it have a high starting packet send to each other to establish communication. 3. Paste a shot of this screen into your worksheet. (7 points) 4. What do you observe about the packet delay related to the ToS we assigned? (7 points) That they have multiple different delays in the three interface queuing. The three could be use depend on the need. 5. Why does this simulation run so much quicker than the first one? (7 points) Because its only tracking the background traffic so it make it a little bit faster. 6. What do you observe about the queuing delays in both scenarios? (7 points) They both average out to be the same kind of startup. Although the background seem to have a smaller delay at the startup compare to the other one. 7. The first panel compares the queuing delays between the three scenarios. Paste a shot of this panel in your answer sheet. (7 points) 8. How do you compare......

Words: 386 - Pages: 2

Netw410

...NETW410 Week 2 Lab Report To complete the Week 2 Lab Report, answer the questions below concerning the Network Design Lab Scenario found in Doc Sharing. Please use the template starting on Page 2, and submit it to the Week 2 iLab Dropbox by the due date. Have fun while learning. Your Name Christopher White NETW410, Professor’s Name Current Date Lab 2: Application of the Top-Down Network Design Methodology Lab Report 1. What are the business goals? (10 points) Redundancy is not required but it is highly recommended to reduce any data loss so the network automatically uses a secondary path if one goes down. The redundancy would be located in layer 3. 2. What are the business constraints? (10 points) The school is utilizing its revenue from property taxes and bonds that must deliver the required improvements but with a very strict budget, suggesting that affordability is more important than the best technical solution. 3. What are the technical goals? (10 points) Improve network performance by increasing the amount of users that can access the network and speed, making the network fast as possible is key to a network administrator. 4. What are the technical constraints? (10 points) The existing equipment such as the CAT5 cable should be replace with CAT6 at every drop and Fiber Optics should replace each uplink at the core. The campus should replace or upgrade its existing ISP or service so that its bandwidth is consist with campus needs for...

Words: 353 - Pages: 2

Netw-410 Week 4

...NETW410, Professor’s Name Lab 4: Connecting Point A to Point B Lab Report 1. How should an Internet connection be made for the current campus? Why did you select this option over the others? AT&T is the carrier providing service to the existing campus as well as the new campus. Examine the offerings for Internet access to select the one that should be used. (10 points) I think internet connection should be made using (DSL) and Broadband. I decided on this option because AT&T’s Digital Subscriber Line service (DSL) offers highly secure, high-speed, cost-effective business Internet connectivity over existing landlines without interrupting voice services. AT&T Broadband Internet Services Provides a single point of contact for business’ connectivity needs, access the Internet and Intranet, stream audio and video and transfer large amounts of data and provide access to remote workers. 2. How should the existing and new campus locations be connected to each other? (10 points) The Existing and new campus can use a fiber optic cabling in order to connect the two campuses. Fiber optic cables are less expensive, there is less signal degrading, non flammable and the best option compared to other competitors. On the other hand the campuses can request a static IP address through the internet provider. Through this the two campuses can connect on a network via WAN 3. Should the two locations share an Internet connection? (10 points) Yes, for this......

Words: 774 - Pages: 4

Homewk

...NETW410 Week 6 Lab Report To complete the Week 6 Lab Report, answer the questions below concerning the Network Design Lab Scenario linked from Step 2 of the iLab page. Please use the template starting on Page 2 and submit it to the Week 6 iLab Dropbox by the due date. Have fun while learning. Your Name: Sheryl Livingstone NETW410 August 14, 2013 Lab 6: Routing Protocol Selection Lab Report 1. Complete this table on routing protocols. However, many rows are needed for the routing protocol names. (10 points) Interior | Exterior | Distance Vector | Link State | Path Vector | Standard | Proprietary | Standard | Proprietary | Standard | RIP | EIGRP | OSPF | BGP | | 2. Should the individual buildings be connected to the Administration Building at Layer 2 or Layer 3? (10 points) The individual building should be connected to the Administration building at layer 3 because each building has their own subnets in the new IP scheme. 3. If the individual buildings should be connected to the Administration Building at Layer 3, which routing protocol or protocols should be used? (10 points) When selecting a routing protocol, one important criterion is how quickly the protocol adapts to changes in the network and resource allocation. EIGRP is a distance vector protocol and would be a good routing protocol to use because the network devices are Cisco based. EIGRP is fast, consumes little resources, supports VLSM, and scales well. EIGRP only works with......

Words: 549 - Pages: 3

Netw410 Week 1 Lab

...NETW410 Week 1 Lab Report Your Name NETW410 Professor Douglas Romans Current Date 1/10/2016 Lab #1, Introduction to Visio Lab Report: (70 points) Place the answers below the questions using a red-colored font. Answer in college-level sentences with proper grammar and spelling. Answer each part of the question for full credit. Question 1 (3 points) What is your experience with the Visio software? Have you used it before or is it your first experience with Visio? I do have some experience with Visio but it is extremely limited. At my internship my boss instructed me to make modifications of a Visio document that mapped out our entire building. That’s the extent of my Visio experience outside of installation. Question 2 (3 points) How did you access Visio? How do you feel about the different access methods? Luckily I already had Visio installed on my computer so I used the desktop application. Question 3 (3 points) What version of Visio did you use for this lab? As previously stated I have Visio installed on my computer, it’s Visio Professional 2013. Question 4 (3 points) What file extension does your version of Visio use? Does Visio support other extensions? My version of Visio saves in .vsdx file format. Question 5 (6 points: 3 points for each screenshot and comment) Use this website (http://www.ratemynetworkdiagram.com/index.php?z=1) to find a diagram that you think has good points. Paste a screen shot of the diagram in your lab......

Words: 826 - Pages: 4

Netw410 Week 3 Ilab

...NETW410 Week 3 Lab Report Lab 3: Designing the Infrastructure for the Network Lab Report 1. Draw a diagram of the new network. (10 points) 2. Will the current horizontal cabling suffice for the new network? If it will not, what type of cable should be used for the horizontal cabling? Provide detailed specifications for this cable. (10 points) No, this is CM rated cable, which may not be installed in the plenum space. CMP rated cable is needed. The new cable should be solid copper, 24 AWG, 100 balanced twisted-pair (UTP) Category 5e cables with four individually twisted-pairs, which meet or exceed the mechanical and transmission performance specifications in ANSI/TIA/EIA-568-C.2 up to 100 MHz for installation in a plenum space; or solid copper, 22 AWG to 24 AWG, 100 balanced twisted-pair (UTP) Category 6 cables with four individually twisted-pairs, which meet or exceed the mechanical and transmission performance specifications in ANSI/TIA/EIA-568-C.2 up to 250 MHz for installation in a plenum space. 3. Should fiber optic horizontal cabling be installed but not terminated as future proofing for a future higher-speed network? What is the cost difference between copper UTP cable and fiber optic cable? Use this model to compute the relative cost—http://www.fols.org/cost_model/ (10 points) The FOLS model will show that the cost of installed fiber optic cable is about the same as copper cable. What it omits, as does the common argument for fiber to...

Words: 570 - Pages: 3