Troubleshooting Checklist

Table 4-2 Troubleshooting Checklist (continued)

Problem

Possible Cause

Recommended Action

 

 

 

Port(s) goes into

Loop condition detected.

Verify that Spanning Tree is enabled.

standby for no

 

Refer to the SecureStack A2

apparent reason.

 

Configuration Guide for the instructions to

 

 

set the type of STA.

 

 

Review the network design and delete

 

 

unnecessary loops.

 

 

If the problem continues, contact

 

 

Enterasys Networks for technical support.

 

 

 

User parameters (IP

Clear NVRAM was set using

Reenter the lost parameters as

address, switch and

CLI commands.

necessary. Refer to the SecureStack A2

module name, etc.)

 

Configuration Guide for the instructions to

were lost when the

 

configure the SecureStack A2 using CLI

SecureStack A2

 

commands.

power was cycled.

 

If the problem continues, contact

 

 

 

 

Enterasys Networks for technical support.

User powered the management switch off before the configuration was saved. Configuration changes on the management A2 switch are saved to itself every two minutes (the configuration is pushed to the other stack members every fifteen minutes).

Execute the “save config” command, and wait for the prompt to come back before Powering the switch off.

Executing the “reset” command automatically saves the config before resetting the switch.

4-8 Troubleshooting

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Enterasys Networks A2H124-24FX manual Refer to the SecureStack A2
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A2H124-24FX specifications

Enterasys Networks A2H124-24FX is a high-performance network switch designed to meet the demands of modern data centers and enterprise environments. This switch exemplifies the blend of reliability, scalability, and advanced features that enterprises require to ensure seamless connectivity and data management.

One of the main features of the A2H124-24FX is its 24 Fast Ethernet (10/100) ports. These ports provide a robust foundation for connecting various devices within a network, making it ideal for workplaces that require extensive connectivity options. Additionally, the switch supports up to 4 Gigabit SFP (Small Form-factor Pluggable) uplink ports, which facilitate high-speed connections to backbone switches or routers, catering to bandwidth-intensive applications.

Another significant characteristic of the A2H124-24FX is its support for Power over Ethernet (PoE). This technology enables the switch to deliver power to connected devices such as IP phones, wireless access points, and security cameras through the same Ethernet cable that transmits data. This feature not only reduces the need for additional power supplies but also streamlines installation processes, reducing overall operational costs.

Security is a paramount concern for any enterprise network, and the A2H124-24FX addresses this through various advanced security features. It includes support for IEEE 802.1X Network Access Control, which ensures that only authenticated users can access the network. Additionally, it provides features such as MAC address filtering and VLAN support to segment network traffic and enhance overall security.

In terms of management, the Enterasys Networks A2H124-24FX is equipped with a user-friendly interface that allows network administrators to configure and monitor the switch effortlessly. It supports both CLI (Command Line Interface) and web-based management, providing flexibility depending on user preference.

This switch also supports advanced Layer 2 and Layer 3 capabilities, including Quality of Service (QoS) features that help prioritize traffic, ensuring that critical applications receive the necessary bandwidth for optimal performance.

In conclusion, the Enterasys Networks A2H124-24FX combines functionality, security, and ease of management, making it an ideal choice for businesses looking to enhance their network infrastructure. Its robust features and reliable performance can effectively support the complex demands of modern networking environments.
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