CCNA 1. Networking Basics v3.1.1 Student Lab Manual (796248), страница 11
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This is to determine the characteristics of the devices and cabling andidentify potential networking problems. Use some of the key capabilities of the Fluke LinkRunner,such as drop activity and ping, to perform the analysis.As networks run faster and become more complex, infrastructure cabling and devices must operateto precise levels in a tighter performance window. As a result, nearly 80% of network problems stemfrom simple wiring and connection problems. The following resources will be required:1-6•Ethernet hub and switch•Several Ethernet straight-through patch cables•Cable run from a wall-plate to switch through a patch panelCCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.The following URLs provide information on the Fluke LinkRunner.
The first one is a virtual demo ofLinkRunner capabilities, and the second is a link to the downloadable LinkRunner Quick ReferenceGuide in various languages.http://www.flukenetworks.com/us/LAN/Handheld+Testers/LinkRunner/_see+it+live.htmhttp://www.flukenetworks.com/us/LAN/Handheld+Testers/LinkRunner/_manuals.htmStep 1 Become familiar with the capabilities of the Fluke LinkRunnerAccess the virtual demo of the LinkRunner using the first URL listed above. Try different tests tobecome familiar with its capabilities.Step 2 Obtain access to the LinkRunner Quick Reference GuideAccess the Quick Reference Guide online directly, or download it to a PC using the link providedabove.
The instructor may also have a copy of the Quick Reference Guide available. Selectedpages of the Quick Reference Guide have been reproduced in this lab. The illustration below showsthe connectors and buttons on the LinkRunner.Step 3 Configure the LinkRunnera. From any screen, access the main configuration by pressing both buttons simultaneously. Thereis the option to configure LinkRunner or go into Ping configuration.b. Pressing the left button goes to LinkRunner configuration where there is the MAC address of theLinkRunner and the display can be toggled between feet and meters.What is the Layer 2 media access control (MAC) address? ___________________________c.
Pressing the right button goes to ping configuration.Step 4 Test active workstation links to a switcha. LinkRunner allows the determination of what type of service users are connected to, such asEthernet, Token Ring, or Telco. On Ethernet segments it can be determined whether the drop isactive, identify its speed, duplex capabilities, and auto negotiation settings.b. This test will determine if the cable drop is active while identifying its speed, duplex, and servicetype (10 or 10/100 indicates Ethernet).c.Turn on the LinkRunner by pressing the small button in the lower right corner.d. Disconnect a functioning LAN patch cable from a workstation and plug it into the RJ-45 LAN porton the LinkRunner.
This is a nondestructive test in that it can be performed on a live network.2-6CCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.The cable should be attached to a wall plate, which then attaches to a switch through a patchpanel in a wiring closet. Cabling should be in accordance with current structured cablingstandards.e.
Observe the display on the LinkRunner and record the information for Drop #1 in the followingtable. A sample display from the quick reference guide is shown below the table.f.Obtain another patch cable of any length, and plug one end directly into the switch. Plug theother end into the LinkRunner LAN port. Record the information for Drop #2 in the followingtable.Link Active ?Cable Type /Link StatusAdvertisedspeed / duplexActual linkspeed / duplexNetworkutilizationDrop #1Drop #2g. Disconnect the end of the cable from the switch and observe the display.
What was the result?__________________________________________________________________________Step 5 Test a direct link to a huba. Obtain another patch cable of any length, and plug one end directly into an active regular hubport. Plug the other end into the LinkRunner LAN port. Describe the results.__________________________________________________________________________b. How does this display differ from that of a cable drop attached to a switch?__________________________________________________________________________c.Disconnect the power from the hub and described the display now.__________________________________________________________________________3-6CCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.d.
Plug the hub back in.e. Move the cable from one of the regular of ports on the hub to the uplink port on the hub. Makesure the uplink is not active, so the button should not be pushed in. Describe the results.__________________________________________________________________________f.Activate the uplink port by pushing in the button. What happened to the wires in the display?__________________________________________________________________________g.
Why did this occur?__________________________________________________________________________Step 6 Use the DHCP Ping function to verify network layer connectivityIf the LAN port in a DHCP network environment is connected, LinkRunner will act as a DHCP client.It will acquire an IP address and verify basic connectivity to key devices by pinging the defaultgateway or router and DNS server. See the diagram below for a sample of the screen display.a.
Turn on the LinkRunner by pressing the small button in the lower right corner.b. Obtain a patch cable of any length and plug one end directly into the switch on a LAN with aDHCP server available. Plug the other end into the LinkRunner LAN port.c.The LinkRunner must be in DHCP mode in order to perform this test. Press the right softkey(Ping) once to see if the DHCP magnifying glass is displayed. If not, press the left softkey twiceand place a checkmark in the DHCP option box.Allow time for the LinkRunner to obtain an IP address from the DHCP server, and then press theright Softkey, which is the ping.Note: If the LinkRunner fails to obtain an IP address, verify that the DHCP option box is checkedand that there is a DHCP server active on the network.d.
What was the IP address that the LinkRunner obtained? _____________________________e. Press the left Softkey or magnifying glass button, which provides ping details.f.What is the IP address of the default router or gateway?g. What is the round-trip time for the ping to the default router? __________________________h. What is the IP address of the DNS server?i.What is the round-trip time for the ping to the DNS server? ___________________________j.If one response time is slower than the other, why is that?__________________________________________________________________________4-6CCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.Step 7 Ping user-defined IP addressThe LinkRunner can be used to ping user-defined IP addresses for up to 4 common IP address pingtargets.
See the diagram below for a sample of the screen display used to edit the IP address forcomputer target 1. This test assumes that the LinkRunner has obtained a compatible IP address,subnet mask and default gateway as a DHCP client in the prior step. If not see the note in step 7jbelow.a. Turn on the LinkRunner by pressing the small button in the lower right corner.b. Disconnect any cables from the LinkRunner.c.Press the right SoftKey (wrench) to access configuration options.d. Press the right SoftKey again (ping and wrench).
When working on a network with a DHCPserver, turn off the LinkRunner DHCP client by removing the checkmark from the DHCP checkbox. Press the right SoftKey (checkmark) to uncheck it.e. Press the left SoftKey (down arrow) to get to the computer icon. Then press the right SoftKey(computer, IP, and wrench) to access the IP address configuration function.f.Press the right SoftKey (down arrow and computer) to cycle through the four IP targets. Zeroindicates no ping for the computer target.
Select IP target number 1.g. Press the left SoftKey (down arrow) to access the IP address, and press the right SoftKey (IPx.x.x.x) to begin configuring the IP address for target computer 1. See figure below.h. Identify the IP address of a lab server or a partner workstation and record it here.___________________________i.Press the left SoftKey (right arrow) to advance the cursor from one number to the next in the IPaddress. Press the right to SoftKey (IP and Up arrow) to change the value of the number.
All 12decimal digits including zeros must be accounted for. While working with the first digit of any ofthe 4 octets, press the up arrow four or five times. What is the maximum number that theLinkRunner will allow to set the first number of an octet to? ___________________________j.When finished with the last digit, the left SoftKey will become a down arrow. Press the leftSoftKey until there is the X (exit), and then press the right SoftKey (X). Press the left SoftKey(down arrow again until you get to the X and press the right SoftKey again to exit theconfiguration function.Note: If the LinkRunner did not obtain a compatible IP address and subnet mask from DHCP inprior Step 6, configure them before going on.
Instead of selecting the computer icon to configure,select the LinkRunner icon and follow the same basic procedure as described above to set its IPaddress and subnet mask. The IP address of the default gateway for the LinkRunner should alsobe set at this point.k.After the IP address is set to be pinged, connect a patch cable from the LAN port on theLinkRunner to a wall plate jack, hub or switch on the network will be pinged. What does thecable display look like? _____________________________________________________l.Press the right SoftKey (ping) to start the ping function.
There should be a workstation icon witha target number 1 on the screen. Does the workstation have a solid lines or dashed lines?___________________________What does this mean?__________________________________________________________________________m. Press the left SoftKey (magnifying glass) to see the IP addresses of all devices being pinged andthe round-trip time for each in milliseconds.n. Which devices were being pinged and what were the round-trip times for each?__________________________________________________________________________o. Press the right SoftKey (X) twice to exit the detailed view and ping function.5-6CCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.Step 8 Disconnect the equipment and store the cabling and devices6-6CCNA 1: Networking Basics v 3.1 - Lab 4.2.9dCopyright 2003, Cisco Systems, Inc.Lab 4.2.9e Fluke LinkRunner – Cable and NIC TestsObjective•Become familiar with the capabilities of the Fluke LinkRunner•Verify cable length and integrity•Determine where a cable terminates•Verify PC NIC functionalityBackground / PreparationIn this lab, the student will work with Ethernet cables to determine their characteristics and identifypotential problems.
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