As more events are examined, there will be three tabs displayed, adding a tab for Inbound PDU Details. In this window, there are only two tabs (OSI Model and Outbound PDU Details) because this is the start of the transmission. The PDU Information at Device: Web Client window displays. It may be necessary to expand the Simulation Panel or use the scrollbar directly below the Event List. Click the first colored square box under the Event List Info column. Did anything change? _The web page was returned from the web Step 3: Explore the contents of the HTTP packet. There should be four events in the Event List. Because time in Simulation mode is you must use the button to display network events. Click the Desktop tab and click the Web Browser icon to open it. The panels can be adjusted in size hovering next to the scroll bar and dragging left or right when the arrow appears. Note: The Web Server and Web Client are displayed in the left pane. The Info column is used to inspect the contents of a particular event. As traffic is generated and stepped through, events appear in the list. There are six columns listed across the top of the Event List within the Simulation Panel. of 5 Packet Tracer Investigating the and OSI Models in Action Step 2: Generate web (HTTP) traffic. The Visible Events should now only display HTTP. Click anywhere outside of the Edit Filters box to hide it. 2) Click the Show check box until all boxes are cleared and then select HTTP. Toggle the Show check box and notice how the check boxes switch from unchecked to checked or checked to unchecked, depending on the current state. Click Edit Filters to display the available visible events. 1) HTTP may already be the only visible event. Click the Simulation mode icon to switch from Realtime mode to Simulation mode. In Simulation mode, packets are displayed as animated envelopes, time is event driven, and the user can step through networking events. However, a powerful feature of Packet Tracer allows the user to switching to Simulation mode. PT always starts in Realtime mode, in which networking protocols operate with realistic timings. In the lower right corner of the Packet Tracer interface are tabs to toggle between Realtime and Simulation mode. Step 1: Switch from Realtime to Simulation mode.
Part 1: Examine HTTP Web Traffic In Part 1 of this activity, you will use Packet Tracer (PT) Simulation mode to generate web traffic and examine HTTP. Even though much of the information displayed will be discussed in more detail later, this is an opportunity to explore the functionality of Packet Tracer and be able to visualize the encapsulation process. The following steps lead the user through the process of requesting a web page from a web server using the web browser application available on a client PC. Packet Tracer simulation mode enables you to view each of the layers and the associated PDU. Each piece is assigned a specific name (protocol data unit and associated with a specific layer of the and OSI models. As data moves through the network, it is broken down into smaller pieces and identified so that the pieces can be put back together when they arrive at the destination. Simulation mode allows you to view the data contents being sent across the network at each layer. Preview text Packet Tracer Investigating the and OSI Models in Action Topology Objectives Part 1: Examine HTTP Web Traffic Part 2: Display Elements of the Protocol Suite Background This simulation activity is intended to provide a foundation for understanding the protocol suite and the relationship to the OSI model.