NETW320: Converged Networks with Lab
Lab #6 Title: Codec Selection for Campus Network – Part 2.
Procedure
Start OPNET IT Guru.
Open the scenario
1. Select File/Open.
2. Select Computer or My Computer (depending on which O/S you have).
3. On your f: drive, open the op_models folder and then the NETW320 folder.
4. Open Lab3_LANCodec.project.
5. Click on Lab3_LANCodec.prj or Lab3_LANCodec (again, depending on what O/S you have).
6. Click Open. The project should open.
7. Choose Scenarios > Switch Scenarios > LANCodec
Configure the Simulation Run
1. We now are ready to configure the simulation. Select the Configuration/Run [pic] tab from the tool bar. After clicking on it, the following screen will open.
[pic]
2. Change Duration to 3 and hour(s) to minute(s) (if it’s not already). Then, expand the Traffic entry. [pic]
3. Scroll down to the Traffic Scaling Factor and Traffic Scaling Mode options.
[pic]
4. Change the value of the Traffic Scaling Factor from 1.0 to 0.2 by selecting Edit and typing in the new value. Change the value of the Traffic Scaling Mode from Background Traffic to All Traffic (if it’s not already).
[pic]
5. Changing these attributes will allow the simulation to run faster. Click Apply and then Cancel to close the Configure/Run DES window.
6. At this point, Save your scenario.
7. Before we duplicate the scenarios, now would be a good time to run the first simulation to ensure that we have all of the configurations made correctly. Once we copy them over to the G729 and G723.1 scenarios, if something is configured incorrectly, that mistake will be transferred over.
8. From the tool bar, select Scenarios -> Manage Scenarios. The following menu will appear.
[pic]
9. Under the Results column for the first Scenario, LANCodec, change uncollected to and click OK. While the sim is running, you should see this