Cisco Systems OL-7822-06 Identifying Startup Problems, CLI Commands for Troubleshooting

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Chapter 8 Troubleshoot Startup Problems

Identifying Startup Problems

Identifying Startup Problems

Startup problems are commonly due to the source power or to a poor cable connection.

This section contains a detailed description of the normal startup sequence and describes the steps to take if the system does not perform that sequence as expected. LEDs indicate all system states in the startup sequence. By checking the state of the LEDs, you can determine when and where the system failed in the startup sequence. Use the following descriptions to isolate the problem to a subsystem, and then proceed to the appropriate sections to try to resolve the problem.

When you start up the system by turning on the power supply switch, the following should occur:

•You should immediately hear the fans operating.

•When all LEDs come on to indicate that the system has booted successfully, the initial system banner should be displayed on the console screen. If it is not displayed, see Connect the Local Console, page 4-1to verify that the terminal is set correctly and that it is properly connected to the console port.

•If the banner is displayed, but the Status LED is flashing orange, indicating a warning state, check the user log:

At the prompt, type: more user log

•If any of the following warning messages appear, turn the SCE 1000 platform off and call technical support.

–"voltage problem"

–"fans problem"

–"abnormal raise in interior temperature"

•If the following warning message appears, delete unneeded files from the disk.

–“insufficient disk space:”

CLI Commands for Troubleshooting

Use the following commands to provide information to help you troubleshoot installation of your SCE 1000 platform. Refer to Cisco Service Control Engine (SCE) Software Configuration Guide or the Cisco Service Control Engine (SCE) CLI Command Reference for more information.

Note Remember that if the management interface is not operational, you should connect the SCE 1000 platform to a local console so that you can enter CLI commands for troubleshooting.

•Troubleshooting firmware package installation:

–boot system <filename>— Specifies and verifies the package file to be installed. Error messages or other output identify problems with the package file.

Following is a sample output from the boot systemcommand.

SCE 1000(config)#boot system ftp://vk:vk@10.1.1.230/downloads/SENum.pkg.pkg

Verifying package file SENum.pkg.pkg…

Package file verified OK.

•Troubleshooting the management subsystem:

Cisco Service Control Engine 1000 2xGBE Quick Start Guide

 

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Contents Cisco Service Control Engine 1000 2xGBE Quick Start Guide Page N T E N T S Example Example 2 Installing a Service Control Application OL-7822-06 Site Preparation and Unpacking Information About Preparing for InstallationPrepare for Rack-Mount Installation Workbench or Tabletop InstallationTools and Parts Prepare for Installation Workbench or Tabletop Installation OL-7822-06 SCE 1000 Mounting Brackets Rack-Mount the SCEAttaching the Mounting Brackets 4-post Attach the Brackets to the SCEAssemble the Crossrail Supports Installing the Crossrail Supports Four-post rack onlyAttach the Crossrail Supports to the Rack Mount the System to the RackSummary Steps Securing the SCE Platform to the Rack Connect the Chassis Ground Connect the Power Supply UnitsGrounding the Unit DC Connecting the PowerConnecting the DC Power Connect the DC-Input Power Supply UnitConnecting the AC Power Connect the AC-Input Power Supply UnitConnect the Local Console Connecting to the Local ConsoleInitial System Configuration Perform the Initial System ConfigurationSetup Command Setup Command Parameters Parameter Definition Example Configuring Initial SettingsSetting the Passwords Configuring the HostnameExample Configuring Time SettingsEnter time zone name UTC CET Enter time interval in seconds between unicast updates Configuring the DNS SettingsEnter Primary DNS IP address Configuring Access Control Lists ACLs Configuring the RDR Formatter DestinationInitial IP address Wildcard bits Range Deny Permit any Examples Configuring Snmp Enter the Snmp configuration menu Type the trap manager community string and press press Enter Enter Snmp trap manager community string About the Topology-Dependent Parameters Configuring the Topology-Dependent ParametersExample 1, Example 2, Example 3, Completing and Saving the Configuration Apply and Save this configuration? yes/no Examples Example Connect the Management InterfaceOL-7822-06 Single Link Inline Topology Information About CablingSingle Link Receive-only Topology Bump-in-the-Wire InstallationCabling the Line Interfaces Configure GigabitEthernet Auto-NegotiationConnect the GBE Line Interface Ports SCE Model Transceiver Transmit Power Receive Power DistanceCable the Line Ports Cabling the Line Interfaces OL-7822-06 Final Tests Examining the LEDsVerifying Operational Status Viewing the User Log Counters Saving the Configuration Settings Examples Following example shows the running configuration fileLoading and Activating a Service Control Application Advanced Configuration of the SCE PlatformOL-7822-06 SCE 1000 Operational Status Troubleshoot Startup ProblemsTroubleshoot Startup Problems SCE 1000 Operational Status CLI Commands for Troubleshooting Identifying Startup ProblemsTroubleshooting the link interface subsystem Page OL-7822-06

OL-7822-06 specifications

Cisco Systems OL-7822-06 is a comprehensive course offered within the Cisco Networking Academy, designed to equip students and professionals with a deep understanding of basic networking concepts and advanced networking technologies. This course primarily focuses on the required skills and knowledge needed for building, running, and maintaining networks and prepares participants for various roles in the IT and cybersecurity sectors.

One of the main features of the OL-7822-06 course is its thorough curriculum, which covers key topics such as networking fundamentals, including OSI and TCP/IP models, IPv4 and IPv6 addressing, and subnetting. It dives deep into network protocols, ensuring learners acquire a firm grasp of how data flows across networks, as well as the role of routers and switches in maintaining efficient network operations.

The course also emphasizes hands-on learning, leveraging various simulation tools and virtual labs that provide students with real-world scenarios to apply their knowledge practically. These labs are integral in helping learners understand the configuration and troubleshooting of network devices, enhancing their problem-solving skills in a controlled environment.

Another significant aspect of OL-7822-06 is its focus on emerging technologies. The course introduces students to concepts such as network security, cloud computing, wireless networking, and IoT (Internet of Things). This inclusion reflects the ever-evolving landscape of technology and prepares participants to be adaptable in the face of rapid change within the industry.

Additionally, the OL-7822-06 course promotes collaboration and peer engagement through group projects and discussions. This not only fosters a sense of community among learners but also enhances their communication skills, which are essential in modern IT environments.

The course is structured to accommodate various learning styles, offering a blend of theoretical knowledge and practical exercises. It provides assessments and quizzes that help gauge understanding and retention of information, ensuring students are well-prepared for certification exams and real-world applications.

In summary, Cisco Systems OL-7822-06 stands out as a robust educational offering that combines foundational networking principles with advanced technologies. Its focus on hands-on experience, collaboration, and the introduction of current industry trends makes it an invaluable resource for aspiring networking professionals, ultimately paving the way for a successful career in the tech industry.
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