Allied Telesis AT-8000S manual Troubleshooting, Device not operating correctly

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Allied Telesis AT-8000S Switch

Installation Guide

Chapter 5. Troubleshooting

This chapter contains information on how to troubleshoot the switch in the event that a problem occurs.

Note

If you are still unable to resolve the problem after following the instructions in this chapter, contact ATI Technical Support for assistance.

Device not operating correctly

Check the PWR LED on the front of the switch. If the LED is OFF, indicating that the unit is not receiving power, do the following:

•Ensure that the power cord is securely connected to the power source and to the AC connector on the back panel of the switch.

•Verify that the power outlet has power by connecting another device to it.

•Try connecting the unit to another power source.

•Try using a different power cord.

•Verify that the voltage from the power source is within the required levels for your region.

•Verify that the LNK/ACT LED for each port is ON. If a LNK/ACT LED is OFF, do the following:

•Verify that the end-node connected to the port is powered ON and is operating properly.

•Verify that the twisted pair cable is securely connected to the port on the switch and to the port on the end- node.

•Ensure that the twisted pair cable does not exceed 100 meters (328 feet).

•Verify that you are using Category 5 twisted pair cable.

Cannot connect using Telnet, Web browser, or SNMP software

•Be sure the switch is powered up.

•Check network cabling between the management station and the switch.

•Check that you have a valid network connection to the switch and that the port you are using has not been disabled.

•Be sure you have configured the VLAN interface through which the management station is connected with a valid IP address, subnet mask and default gateway.

•Be sure the management station has an IP address in the same subnet as the switch’s IP interface to which it is connected.

•If you are trying to connect to the switch via the IP address for a tagged VLAN group, your management station, and the ports connecting intermediate switches in the network, must be configured with the appropriate tag.

•If you cannot connect using Telnet, you may have exceeded the maximum number of concurrent Telnet/SSH sessions permitted. Try connecting again at a later time.

Forgot or lost the password

Contact ATI Technical Support for assistance.

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Contents Installation Guide Allied Telesis AT-8000SPage Table of Contents Allied Telesis AT-8000S Switch Switch Installation Guide StackingTable of Contents Allied Telesis AT-8000S Switch Installation GuidePreface How This Guide is OrganizedContacting Allied Telesis Contacting Allied TelesisAllied Telesis AT-8000SSwitch Switch Installation GuideProduct Description Features Ieee StandardsProduct Description Ieee 802.3 10Base-T Ieee 802.3u 100Base-TXAT-8000S/16 Front Panel AT-8000S/16 Back PanelAT-8000S/24 Front Panel AT-8000S/24 Back PanelAT-8000S/24POE Front Panel AT-8000S/24POE Back PanelAT-8000S/48 Front Panel AT-8000S/48 Back PanelAT-8000S/48POE Front Panel AT-8000S/48POE Back PanelPorts Description LED DefinitionsMode LEDs Mode LED Indications LED Description24/48 Port Device Stacking LEDs Port LEDs 10/100 Base-T Fast Ethernet RJ-45 Port LEDsPort LEDs Stacking LED Indications LED Description10/100/1000 Base-T/Combo Ethernet RJ-45 Port LEDs 10/100Base-T Fast Ethernet RJ-45 Port LED IndicationsPort Description LED Indication 24/48 Port Device SFP/Combo Port LEDs Combo Port LED Indications Port DescriptionSFP Port LED Indications Port Description Power LED Diagnostic LEDDiagnostics LED Indications LED Description 24/48 Port Device System LEDsStacking Ports LEDs Stacking Ports LEDsInstallation Preparing for InstallationSafety Precautions Installation Preparing for InstallationSite Requirements UnpackingInstalling the Device Desktop or Shelf InstallationPackage Contents Unpacking EssentialsRack Installation Installing Rubber FeetConnecting the Device Connecting the Switch to a TerminalConnecting the Device AC Power Connection Installation Stacking Understanding the Stack TopologyStacking Chain Topology Stacking Members and Unit IDStacking Stacking Chain TopologyConfiguring Stacking Press Return or Esc. to abort and enter prom Configuring Stacking Enter unit working mode 1 standalone, 2 stackingInitial Configuration Configuration OverviewConfiguration Static IP Address and Subnet MaskInitial Configuration ConfigurationUser Name Troubleshooting Cannot connect using Telnet, Web browser, or Snmp softwareForgot or lost the password Device not operating correctlyTroubleshooting Appendix A. Technical Specifications Technical Specifications Compliance StandardsCable, Port, and Pinout Information Pin Connections for the 10/100/1000 Ethernet InterfaceTxRx 2+ TxRx 3+ TxRx 4+ Technical Specifications Appendix B. Safety Statements Laser Safety NoticesElectrical Safety Notices Safety Statements Electrical Safety NoticesAllied Telesis AT-8000SSwitch Safety Statements Allied Telesis AT-8000SSwitch Telecommunications Compliance Notices Telecommunications Compliance NoticesIndex
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