The sections in this chapter describe common lan switch features and solutions to some of the most common lan switching problems. This means that a candidate should definitely pay attention to such a section. At this point if everything is configured correctly, you will be asked. Pdf troubleshooting cisco nexus switches and nx os. Make sure your computer meets the minimum requirements. If you cant get email, browse the web, or stream music, chances are youre not connected to your network and cant get onto the internet. Divided into six parts, this book takes you beyond basic switching concepts by providing an array of proven design models, practical implementation solutions.
This book provides you with a wealth of details on the architecture, operation, and configuration of the cisco catalyst family of switches. To fix the problem, here are some things you can try. Lan protocols operate at the physical and data link layers of the osi model and define communication over the various lan media. Often, as with all computer devices, a reboot will fix the problem. This configuration permits two computers to transmit data at the same time. Troubleshooting ethernet 10100mb halffull duplex autonegotiation. Exercises, activities, and scenarios to prepare for the icnd2 200101 certification exam allan johnson cisco press 800 east 96th street indianapolis, indiana 46240 usa. Lan switching fundamentals checking software versions one of the most important steps in troubleshooting a catalyst switch is to determine the software that it is running.
In this post, well discuss common general switch issues, vlan related issues, and spanningtree issues. This is a good moment to pick up the phone and call the administrator of r2 to check their router. Moreover, you will learn to find devices in a network. The most complete guide to cisco catalystr switch network design, operation, and configuration master key foundation topics such as highspeed lan technologies, lan segmentation, bridging, the catalyst commandline environment, and vlans improve the performance of your campus network by utilizing effective cisco catalyst design, configuration, and troubleshooting techniques. In this lab and later labs, we will be looking as different troubleshooting scenarios and how to resolve them, not just from an iwanttopasstheexam point of. Page i cisco catalyst lan switching page ii mcgrawhill cisco technical expert series albritton cisco ios essentials 00747437 caputo cisco packetized voice and data integration 00747771 fischer configuring cisco routers for isdn 0070220735 held and hundley cisco security architectures 00747089 lewis cisco switched internetworks. Internetworking troubleshooting handbook, second edition 1587050056 chapter 23 troubleshooting lan switching environments lan switching introduction a switch can physically replace a hub in your network. This course provides a comprehensive approach to learning. First, it explains several tools and functions not covered in chapters 4 through 6speci. Exchanging advances are urgent to system outline, as they permit movement to be sent just where it is required as a rule, utilizing quick, equipment. By default, each cisco switch port uses ethernet autonegotiation to determine the speed and duplex setting whether it can be half or full. Revised 5312 page 1 of 2 network troubleshooting guide for windows if you are having trouble connecting check the following. Cable a network that is similar to the one in the topology diagram.
The computer was moved to a new ethernet switch port that automatically senses network speed. Typically, the switch does not wait for a mac address expiration when a mac move operation occurs. Troubleshooting ip routing this troubleshooting chapter has several goals. Allied telesis labs, 2009 local area networks computer networks 228 pages. Troubleshooting ethernet switching techlibrary juniper. Cisco lan switching ccie professional development series. Basics of tcpip, switching, routing and firewalling. Lan switch security what hackers know about your switches.
Chapter 23 troubleshooting lan switching environments lan switching introduction a switch can physically replace a hub in your network. The most complete guide to cisco catalystr switch network design, operation, and configuration master key foundation topics such as highspeed lan technologies, lan segmentation, bridging, the catalyst commandline environment, and vlans improve the performance of your campus network by utilizing effective cisco catalyst design, configuration, and troubleshooting techniques benefit from the. Sometimes a pdf file becomes damaged or contains corrupt data. Cisco lan switching fundamentals presents an indepth look at modern campus network requirements. Challenge lab is designed to test you on configuration and verification of common ccna technologies including layer 2 switching, routing, ip services and more. Troubleshooting lan switching and wireless configurations. If the print book includes a cdrom, this content read online books at. Cisco lan switchingprovides the most comprehensive coverage of the best methods for designing, utilizing, and deploying lan switching devices and technologies in a modern campus network. Link aggregation using etherchannel is configured on s2, s3, and s4. Packet tracer troubleshooting enterprise networks 3.
It provides an easytounderstand introduction to lan switching best practices using cisco catalyst switches. Troubleshooting ethernet switching on ex series switches. Mac address in the switchs ethernet switching table is not updated after a mac address move. Click the connect button or ok if you have a version of the software prior to version 7. Cisco lan switching books pics download new books and.
W1channel recommended books to learn more about netorking w1channel recommended books to learn more about pc hardware. If youre looking for a free download links of cisco lan switching ccie professional development series pdf, epub, docx and torrent then this site is not for you. Open the new copy on your hard drive and print again. Powerlite home cinema 5040ub5040ube users guide welcome to the powerlite home cinema 5040ub5040ube users guide. The outline of this chapter should be used as a template when troubleshooting catalyst switches. Fix network connection issues in windows windows help. Nxos and cisco nexus switching nextgeneration data center architectures second edition the complete guide to planning, configuring, managing, and troubleshooting nxos in the enterpriseupdated with new technologies and examples using cisco nexus switches and the nxos operating system, data center professionals can build unified core. The troubleshooting information in chapters 3 through 9 is in a form made up of paths consisting of statements followed by y yes and n no. Lets talk about the essential part of troubleshooting vlan and switch problems. Page 2 of 9 30475 s wixom road suite 100 wixom mi, 48393 800.
Indeed, in this article, we jumpstart you to switch troubleshooting on cisco devices. You should follow specific steps rather than jumping from one area to another. Connectivity problems may occur if either of the following conditions is true. Sometimes a mac address entry in the switchs ethernet switching table is not updated after the device with that mac address has been moved from one interface to another on the switch. Lan switching and wireless, ccna exploration companion. When applicable, sections in appendix a are referred to for additional information. Virtual lans within a switched local area network provide segmentation and effective network management as well as security.
Type in the name of the server computer you found from step 1 in the text box labeled the server is. No ethernet switching troubleshooting in troubleshooting section, but it can be included in the configuration section much larger topic domain than hdlcpppframe relay, and considered. Lan switching and wireless ccna exploration companion guide wayne lewis, ph. If managing the switch from a remote network, a default gateway must also be configured the ip information address, subnet mask, gateway is to be assigned to a switch svi switch virtual interface although these ip settings allow remote management and remote access to the switch, they do not allow the switch to route layer 3 packets. Any message exceeding a networkdefined maximum length is broken up into shorter units, known as packets, for transmission. Cisco switch troubleshooting hello, before you add the switch, issue the command show spanningtree root, this should give you the mac address of the root bridge for your vlans. A lan is generally a highspeed network that covers a small geographic area, usually contained within a single building or campus.
Network engineers have the flexibility of segmenting their network into separate vlans according to work groups, department differentiation or even application usage without worrying about the physical location of the hosts. If not, troubleshoot the switch and host configuration. Lan switching and wireless ccna exploration labs and study. In general, switching technology works well, but it is not without its pitfalls. A lan is usually under the administrative control of a single organization. Cisco lan switching ccie professional development series pdf. Index termsethernet, hierarchal design, lan, switched lan, switching, aa network. Learn how to troubleshoot vlan and switch problems in the first of this. Configuring a switch is generally an easy task, but when things go wrong you need to know what to do. Lan switching is a technology that promises to increase the efficiency of local area networks and solve the current bandwidth problems. Lan switchingandwirelessccnaexplorationlabsandstudy. Cisco switch troubleshooting basics and steps list. A router is a device generally used for networking which is used for forwarding the data packets flanked by various computer networks thus creating an overlay inter connected network because a single router is linked with various data lines on different networks.
Each challenge lab is broken into two separate sections. You can use any current switch in your lab as long as it has the required interfaces shown in the topology. Switching loops layer 2 along with broadcast storms can be overcome by making use of function known as spanning tree protocol or stp in lan local area. Ccna routing and switching practice and study guide. How to troubleshoot common routers and switches issues. Advanced network adapter troubleshooting for windows. On this screen, select the this computer is a client option. A switch allows multiple devices to be connected to the same network, just like a hub does, but this is where the similarity ends. If you downloaded the pdf from the web or received it in an email, download the pdf again or ask the sender to resend it.
The computers on a local area network lan typically share a common fullduplex network medium. For a printable pdf copy of this guide, click here. Switches, being manageable, run software, and that means that every so often a bug can occur which can cause seemingly strange errors on your network. With this stepbystep guide you will learn the troubleshooting commands, and how to use them. Copy the file directly to your hard drive, rather than a thumb portable or network drive. Configure, verify, and troubleshoot basic router operation and routing on cisco devices. If the statement is true, follow the for chapter 1, introduction. Lan switching and wireless ccna exploration labs and study guide instructors edition 1. Examine the software and then the hardware, look for port errors, see what the syslog and trace messages say, and, finally, use a port analyzer when necessary. Check for physical interface problems like duplex mismatch. Lan switching and troubleshooting guide andrew riddell. The output shown in this lab is from a 2960 switch. Lan switching technologies troubleshoot interface and cable issues collisions, errors, duplex, speed chapter 4 lan switching technologies configure, verify, and troubleshoot vlans normalextended range spanning multiple switches chapter 5 lan switching technologies configure, verify, and troubleshoot interswitch connectivity chapter 5 lan. Lan switching is a form of packet switching in which the data packets are transferred from one computer to another over a network.