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

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.