CHAPTER 5

ELS10-26 DIAGNOSTICS AND TROUBLESHOOTING

The ELS10-26 incorporates built-in diagnostic and testing capabilities which are convenient to use and cause minimal or no disruption to the rest of the operational network. These capabilities are effective for isolating problems within the ELS10-26 unit. Built- in diagnostic capabilities include:

System-wide power-up diagnostics, which are run every time the system is powered up or reset.

5.1 POWER-UP DIAGNOSTICS

The ELS10-26 performs an extensive set of diagnostic self-tests whenever any of the following events occur:

Power-up

Reset using the front panel Reset button (a hard reset)

Reset via the NMS (a soft reset)

Automatic reset in response to a non-recoverable failure

The power-up diagnostics test processors, memory, and other critical hardware components of the ELS10-26. All diagnostic software is stored in non-volatile memory.

5.1.1 Power-up LED Sequence

When you power-up the ELS10-26, the following occurs:

1.All LEDs turn on for one second.

2.The Power (Pwr) LED and all of the status LEDs remain on.

3.The CPU LED starts flashing.

4.All LEDs on ports 1 - 24 will go on in sequence and then go out.

5-1

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Cabletron Systems ELS10-26TX Chapter ELS10-26 Diagnostics and Troubleshooting, POWER-UP Diagnostics, Power-up LED Sequence

ELS10-26TX specifications

Cabletron Systems ELS10-26TX is a high-performance Ethernet switch designed to meet the demands of expanding network architectures. This switch is particularly noted for its robust features, making it suitable for various applications, from small business environments to larger enterprise settings.

One of the main features of the ELS10-26TX is its ability to support 10/100 Mbps auto-sensing Ethernet connections. This versatility allows it to interface seamlessly with existing networks, accommodating both older systems and newer high-speed devices. Its 26 ports provide ample connectivity for a range of devices, enabling users to connect multiple workstations, printers, and servers without any compromise on network performance.

The ELS10-26TX utilizes advanced switching technology, which enables it to dynamically manage data traffic across all connected devices. By employing store-and-forward switching techniques, the device reduces latency while preventing data collisions. This is particularly beneficial in environments where heavy traffic is common, as it ensures reliable communication and efficient data transfer.

In terms of its physical characteristics, the ELS10-26TX features a compact design that allows for easy integration into existing network setups. Its robust hardware ensures durability and longevity, making it a reliable choice for organizations that require uninterrupted network service. Additionally, it supports rack-mountable installation, providing flexibility for various deployment scenarios.

The switch also includes essential management features, such as VLAN support, which allows organizations to segment their networks for improved security and traffic management. With Quality of Service (QoS) capabilities, the ELS10-26TX can prioritize critical data traffic, ensuring that essential applications receive the necessary bandwidth for optimal performance.

Security is another notable characteristic of the ELS10-26TX. The device incorporates several security measures to protect the network from unauthorized access and potential threats. These include port security features, which restrict access to individual switch ports, and network management tools that facilitate monitoring and auditing of network activity.

In summary, the Cabletron Systems ELS10-26TX is a versatile and feature-rich Ethernet switch that can significantly enhance network connectivity and performance. Its combination of speed, management capabilities, and security features makes it suitable for a wide array of network configurations, ensuring that it meets the evolving needs of organizations today and into the future.