Cisco 2600XM Series Installation Guide

Table of ContentsHardware Troubleshooting for the Cisco 2600 Series Router...1 In

Cisco − Hardware Troubleshooting for the Cisco 2600 Series Router

**If the router does not experience the continuous loop after following the troubleshooting steps above, thenthe problem may have been caused by a mis

It may also be caused by faulty memory hardware or by a software bug.Watchdog TimeoutsCisco processors have timers that guard against certain types of

LEDs on after powerup; nothing on consoleVerify that the baud rate is set to 9600 bps. If that doesn't help, verify that the equipment used for c

Router Is Dropping PacketsPacket loss caused by hardware problems is fairly easy to identify. The following section uses the output ofthe show interfa

If "ignores" are present on all interfaces, then the router is probably overloaded with traffic, or doesn't havesufficient free buffers

following is an example of the command output:Router#test memoryTest NVRAM card [y/n] ? yFailedThe solution is to issue the write erase command and re

Hardware Troubleshooting for the Cisco 2600Series RouterInteractive: This document offers customized analysis of your Ciscodevice.IntroductionPrerequi

Note: This document does not cover any software−related failures except for those that are often mistaken ashardware issues.PrerequisitesRequirementsR

Procedure Using ROMmon. This procedure does not require the use of a Trivial File TransferProtocol (TFTP) server.Error MessagesThe Error Message Decod

Identifying the IssueIn order to determine the cause, the first step is to capture as much information about the problem as possible.The following inf

point. Hangs are not necessarily hardware issues and most of the time, they are a software issue. If your routeris experiencing a router hang, refer t

troubleshooting steps to determine which piece of hardware is causing the continuous loop.Identifying a Continuous/Boot Loop Due to a Wrong Iomem Size

Step CFollow the steps as described below:Attach a terminal or PC with terminal emulation to the console port of the router. Use the followingterminal

Troubleshooting FlowchartBelow is a troubleshooting flowchart for Bus Error Exception, SegV Exception, %ERR−1−GT64010, andWatchdog Timeout continuous