Allied Telesis AT-8100L/8POE-E, AT-8100S/48POE manual Troubleshooting, Chapter

Page 103

Chapter 6

Troubleshooting

This chapter contains suggestions on how to troubleshoot the switch if a problem occurs.

Note

For further assistance, please contact Allied Telesis Technical

Support at www.alliedtelesis.com/support.

Problem 1: The Stack ID LED on the front of the switch is off.

Solutions: The unit is not receiving power. Try the following:

Verify 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 a different power cord.

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

Problem 2: All of the port LEDs are off even though the ports are connected to active network devices.

Solution: The switch may be operating in the low power mode. To toggle on the LEDs, press the eco-friendly button on the front panel of the switch. You may also toggle the LEDs off and on with the ECOFRIENDLY LED and NO ECOFRIENDLY LED commands in the Global Configuration mode of the command line interface.

Problem 3: A twisted pair port on the switch is connected to a network device but the port’s LINK/ACT LED is off.

Solutions: The port is unable to establish a link to a network device. Try the following:

Verify that the port is connected to the correct twisted pair cable. This is to eliminate the possibility that the port is connected to the wrong network device.

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Contents Stand-alone Switch Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Snmp 110 Contents Figures Figures Tables Tables Preface Document Conventions Contacting Allied Telesis Preface Chapter Overview10/100 Mbps Twisted Pair Ports Features8100L and 8100S Models 10/100/1000 Mbps Twisted Pair Ports SFP Slots Power over EthernetOverview Page Hardware Features 8100L Series SwitchesFeature Front Panel Components Front Panels of the 8100L Series SwitchesFeature 24C 8100S Twisted Pair Series SwitchesFront Panels of the 8100S Twisted Pair Series Switches Networking Ports and SFP Slots on the 8100S Series Switches Feature 16F8-SC 16F8-LC 24F-LC 8100S Fiber Optic Series SwitchesFront Panels of the 8100S Fiber Optic Series Switches AT-8100S/24-LC 100Base-FX Fiber Back Panels AT-8100L/8POESwitchShows the back panels of the dual power supply switches Series Management Panel Management PanelsConvention Definition Model Naming ConventionsThis is the number of 100Base-FX fiber optic ports 10/100Base-TX Twisted Pair Ports Speed Duplex Mode Wiring ConfigurationRequirements Distance10Mbps 100Mbps Cable Type Non PoE PoE+ 10/100/1000Base-T Twisted Pair Ports Cable Type 10Mbps 100Mbps 1000Mbps Cable Requirements Port PinoutsModel 10/100/1000 SFP Slot Base-T Port SFP SlotsOverview Power Over Ethernet Powered Device Classes Power BudgetMaximum Power Class Output from a Switch PD Power Range Port Prioritization Wiring Implementation Stacking Ports Eco-friendly Button 10/100Base-TX Twisted Pair Port LEDs LEDsState Description 10/100/1000Base-T Twisted Pair Port LEDs Base-FX Port LED 100Base-FX port LED is described in Table 100Base-FX Port LEDsSFP Slot LEDs SFP slot LED is described in Table LINK/ACT Stacking Port LEDsStack ID Console Port Power Supplies Power Connectors Overview Beginning the Installation Installation Procedures Reviewing Safety Precautions Beginning the Installation Page Beginning the Installation Choosing a Site for the Switch 8100L Series Switches Unpacking the SwitchComponents of the 8100L Series Switches Components of the 8100S Series Switches 8100S Series SwitchesComponents of the AT-8100S/24C Switch AT-8100S/24C SwitchBeginning the Installation Installing the Switch on a Table or in an Equipment Rack Installing the Switch on a Table or Desktop Removing the Rubber Feet Installing the Switch in an Equipment RackInstalling the Switch on a Table or in an Equipment Rack Page Installing the Switch on a Table or in an Equipment Rack Page Installing the Switch on a Table or in an Equipment Rack Cabling the Networking Ports Twisted Pair Ports Cabling the Twisted Pair and Fiber Optic PortsFiber Optic Ports General Guidelines Installing Optional SFP Transceivers Page Positioning the SFP Handle in the Upright Position Page Cabling the Networking Ports Powering On the Switch Plugging in the AC Power Cord Powering On an AC SwitchMonitoring Initialization Processes LEDs Phase SecondsInitialize Management Load SoftwareSwitch Initialization Messages Initializing Monitor Powering On a DC Switch DC Terminal Block Page Powering On the Switch Starting a Local Management Session Setting the Stack ID NumberStarting a Telnet Management Session Stack oldid renumber newid Changing the Stack ID NumberThis confirmation prompt in is displayed Local Management Telnet Management Starting a Management Session Secure Shell Management Web Browser Management Snmp 102 Troubleshooting 104 105 Troubleshooting 106 Physical Specifications Technical SpecificationsAppendix a Environmental Specifications Maximum Power Consumptions Power SpecificationsQuality and Reliability CertificationsRJ-45 Twisted Pair Port Pinouts Pin MDI Signal MDI-X SignalTransmitter Fiber Optic Port SpecificationsPinout Pair GeneralReceiver Pin S1 Port S2 Port Pin SignalRJ-45 Style Serial Console Port Pinouts Stacking Port Pinouts115 Appendix a Technical Specifications 116

AT-8100S/48POE, AT-8100S/48, AT-8100L/8, AT-8100L/8POE-E, AT-8100L/8POE specifications

Allied Telesis is renowned for its range of high-performance networking solutions, and the AT-8100 series exemplifies their commitment to innovation in the network switch market. Designed for small to medium-sized businesses, the AT-8100L and AT-8100S series includes several versatile models: AT-8100L/8POE, AT-8100L/8POE-E, AT-8100L/8, AT-8100S/48, and AT-8100S/48POE. These products combine advanced features with user-friendly management tools, making them ideal for various applications.

One of the standout features of the AT-8100 series is its Power over Ethernet (PoE) capabilities, particularly in models like the AT-8100L/8POE and AT-8100S/48POE. These switches can deliver power to connected devices, such as IP cameras, wireless access points, and VoIP phones, over the same cabling that carries data. This simplifies installations and can reduce infrastructure costs, as there’s no need for additional power sources for each device.

The AT-8100L/8POE and AT-8100L/8POE-E are equipped with 8 Ethernet ports, with the PoE models supporting up to 15.4W per port on the standard. The AT-8100S/48 boasts an impressive 48 ports, making it suitable for high-density environments. All units in the series are designed to handle Layer 2 networking protocols, ensuring reliable and swift data transfer within local area networks.

Management features are robust and user-friendly. The switches support both web-based and command-line interface management, allowing network administrators to tailor their control methods according to preference and familiarity. The AT-8100 series includes features such as VLAN support, quality of service (QoS) settings for traffic prioritization, and link aggregation for increased bandwidth and redundancy.

Security is a critical aspect of modern networking, and Allied Telesis addresses this with features like port security and DHCP snooping. These functionalities help prevent unauthorized access and protect the network from various types of attacks.

In summary, the Allied Telesis AT-8100 series switches, including the AT-8100L/8POE, AT-8100L/8POE-E, AT-8100L/8, AT-8100S/48, and AT-8100S/48POE, provide a blend of PoE capabilities, robust management features, and solid performance. Their reliability and ease of use make them an excellent choice for businesses looking to enhance their network infrastructure. As organizations increasingly rely on connected devices, the AT-8100 series equips them with the necessary tools to build efficient and secure networks.
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