Chapter 5: Troubleshooting

Troubleshooting CSX200 Hardware

Power (PWR) LED is OFF

Check that the power connection is firmly attached to the back panel of the CSX200, and the other end to an active power source.

Processor (CPU) LED is OFF

If the CPU stays OFF for an extended amount of time, and the power (PWR) light remains on, the CPU is in an unknown state.

Contact Cabletron Systems Global Call Center for technical support (refer to Getting Help in Chapter 1, Introduction).

Processor (CPU) LED is RED

The processor has detected a fault condition.

Contact Cabletron Systems Technical Support (refer to Getting Help in Chapter 1, Introduction).

Troubleshooting the LAN

Collision (CLN) LED is RED

Collisions are normal in an Ethernet network, however, increased collisions may indicate that the network is out of specification (the propagation delay between two nodes on the network exceeds 25.6 µs).

Link (LNK) LED is OFF

Check that the CSX200 and the device at the other end of the segment are powered up.

Verify that the RJ45 connectors on the twisted pair segment have the correct pinouts.

Check the cable for continuity.

Check that the cable meets the specifications for dB loss.

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CSX200 Installation Guide

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Cabletron Systems manual Troubleshooting CSX200 Hardware, Troubleshooting the LAN

CSX200 specifications

Cabletron Systems was a leading developer of networking solutions, and its CSX400 and CSX200 series of high-performance switches represent some of the key innovations in the field of enterprise networking during their time. Both models were geared towards enhancing network reliability, efficiency, and speed, particularly in environments where heavy data traffic and complex networking demands were prevalent.

The CSX400, designed for larger enterprises, boasts a robust architecture capable of handling significant throughput. One of its standout features is its stackable design, allowing multiple switches to be interconnected and managed seamlessly as a single unit. This scalability provides organizations with the flexibility to expand their networks without significant infrastructure overhauls. The CSX400 supports various Ethernet standards, including 10/100 Ethernet and Gigabit Ethernet, positioning it to effectively manage both legacy and modern networking requirements.

In addition to its scalability, the CSX400 is distinguished by its advanced Layer 2 and Layer 3 routing capabilities. This dual-layer functionality enables efficient data handling and is instrumental in managing traffic between different network segments. Moreover, the switch incorporates features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS) prioritization, allowing for enhanced performance of critical applications and streamlined bandwidth allocation.

On the other hand, the CSX200 series is tailored for smaller enterprises or branch offices needing a reliable yet efficient networking solution. Despite its compact design, the CSX200 is equipped with essential features that promote effective network management and security. It offers a simplified management interface, making it user-friendly for network administrators. The switch also provides essential access control measures, employing technologies like IEEE 802.1X for network access security.

Both the CSX400 and CSX200 prioritize performance through the incorporation of advanced switching technologies. They support features such as Spanning Tree Protocol (STP), enabling loop-free topologies and enhanced network resilience. These attributes are particularly crucial in dynamic networking environments where downtime can have significant repercussions on business operations.

Overall, Cabletron Systems' CSX400 and CSX200 series represent a blend of scalability, advanced routing capabilities, and user-friendly management, making them vital assets for organizations looking to optimize their network infrastructure during a period of rapid technological evolution. With their rich feature sets and unwavering performance, these switches helped pave the way for modern networking solutions that cater to diverse enterprise needs.