ccna 200-301 network simulator ns2 aksu

ccna 200-301 network simulator ns2 aksu.04.1 Using Analog DevicesThere is an old Chinese saying, "A clever woman can't cook without rice", and learning networking is even more so. However, Cisco routers and switches are expensive, often thousands of dollars, or even hundreds of thousands of dollars, far beyond the purchasing power of individuals. If you want to configure routers and switches, in addition to participate in social training, almost no choice. Even if you attend social training, the time is short, and the equipment is even more limited to meet the demand. How to solve this tricky problem? Here we are proud to recommend two classic simulation software "PacketTracerM and "Dynamips".4.1.1 Use of Packet Tracer SimulatorCisco has developed an official simulation software PacketTracero specifically for its CCNA certification to design, configure and troubleshoot users can choose their own devices, including routers, switches, hubs, wireless APs, wireless broadband routers, various cables, computers and servers, etc., and then complete the configuration of the devices and be able to test them, feeling and real scenarios are virtually indistinguishable.PacketTracer is a classic simulator for beginners to learn CCNA, with a realistic interface, easy to get started, supporting almost everything CCNA involves, the latest version is 521. support is much stronger. However, it only supports some of the CCNA content, which is very helpful for beginners, and does not support the complex experiments in the CCNP and CCIE sections. The following demonstrates the installation and use of Packet Tracer.1. Install PacketTracerFrom http://blcui.njut.edu.cn/CCNANEW.rar, unzip it to your hard disk, and then double-click the "PacketTracer5.2.1 Chinese Version \PacketTracer52l_setup.exe file in the package to complete Packet Tracer's installation.PacketTracer main interface Introduction Double-click the "Cisco Packet Tracer" shortcut icon on the desktop to run Packet Tracer, and open the Packet Tracer main interface, as shown in Figure 4-1-1.4-1-1 shows. The main interface provides many options, but many options are not used in the project, and will not be covered in the exam, this book only introduces the functions that can be used, more functional options can be viewed Packet Tracer online help.Figure 4-1-1 Packet Tracer Main Screen In Figure 4-1-1: . Area 1 is the menu items, including the File, Edit, Options, View, Tools, Expansion, and Help menus. Each menu in turn includes corresponding submenus. . Area 2 is the Quick Toolbar, which includes the New, Open, Save, Print, Copy, Paste, Undo, Zoom In, Restore, and Zoom Out icons. Area 3 is the general toolbar with buttons for: Select, Comment, Move Device, Delete Device, etc... Area 4 is the logical and physical toggle button, the physical is the actual physical distribution of the device. The reader can just use the logical topology and ignore the physical topology... Area 5 is the work area where the topology can be created. Select devices and cables from area 9 and drag them into area 5 and connect them to build the logical topology map. . Area 6 is the real time and simulated scenarios. The real time scenario is equivalent to the working state and the simulation scenario is equivalent to the teaching mode, where you can capture specific protocols and analyze the contents of the protocol packets. The device runs slower in the simulation scenario and is switched to the real time scenario when doing experiments normally... Area 7 is the device selection window. . Area 8 is the device type selection window, including routers, switches, hubs, wireless devices, cables, computers, net clouds, and user-defined devices. . Area 9 is the specific device model for a certain type of device, for example, if you select a router in area 8, area 9 will list all router models that the emulator can support, then select a particular router from area 9 and drag the router into work area 5. . Area 10 is the window for managing packets in the simulated scenario, and is not normally used, so ignore it here.