By Inc. Cisco Systems
If you happen to can think about the matter, Internetworking Troubleshooting instruction manual most likely has the answer - at the least by way of networking difficulties. This 714-page tome is de facto exceptional in scope. although you'll now not locate in-depth scholarly discussions of networking woes, you'll find pragmatic counsel which could assist you via a right away concern. And the configuration monitors, tables, and diagrams are either crucial and worthy additions to the text.Divided into six sections, the 1st outlines common problem-solving options in addition to to be had troubleshooting instruments from Cisco and third-party proprietors. subsequent, the authors deal with undefined, booting, and media (which primarily capacity solutions as to what will be fighting the community routers or switches from instantly firing up). furthermore, capability Ethernet, FDDI (Fiber disbursed information Interface), and Token Ring malfunctions are greater than sufficiently addressed.The seven chapters of part three deal solely with routing protocols from TCP/IP to AppleTalk to the extra vague Banyan VINES. As for WAN connectivity, greater than a hundred pages are devoted to serial line, dial-in, ISDN, body relay, and X.25 connections. And if you are experiencing trouble on your ATM or LAN switching atmosphere, along with your safeguard servers, or with CiscoWorks, this crew of authors has supplied worthy information for these concerns besides. The 5 appendices - "Creating middle Dumps," "Memory Maps," "Technical aid Information," "References and steered Reading," and "Troubleshooting Worksheets" - also are necessary.
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Extra info for Internetworking Troubleshooting Handbook
Reinstall the EPROM and power up the system. If a pin breaks off, the EPROM must be replaced. 4. If an EPROM has been installed backward and power has been applied to it, the EPROM has been damaged and must be replaced. 5. If local timeouts persist, contact your technical support representative. Internetworking Troubleshooting Handbook, Second Edition 3-44 1-58705-005-6 Chapter 3 Troubleshooting Hardware and Booting Problems Troubleshooting Booting Problems Booting: Unresponsive Terminal Connection to Unconfigured Access Server Symptom: A terminal connected to an unconfigured access server is unresponsive.
Boot the router from ROM and ping the TFTP server. Determine whether timeouts and out-of-order packets appear. 2. Check local network concentrators for excessive collisions on the same network. If there are excessive collisions, reorganizing your network topology might help reduce collisions. 3. Use the show interfaces exec command on routers in the path, or place a network analyzer between the router and server. Look for dropped packets and output errors. 4. If approximately 15 percent or more of the traffic is being dropped, or if any output errors occur, congestion might be the problem.
3. Check all cabling and connections. Replace any faulty cabling. Internetworking Troubleshooting Handbook, Second Edition 3-18 1-58705-005-6 Chapter 3 Troubleshooting Hardware and Booting Problems Troubleshooting Hardware Catalyst 2900 Series Startup When you start up a Catalyst 2900 series LAN switch, the following should occur: • The PS LED on the supervisor engine module faceplate should come on and stay green while power is applied to the system. • The system fan assembly and Fan LED should come on and stay on while power is applied to the system.