Cabletron Systems 520 Problem Solving Using the LEDs, Symptom Probable Cause Corrective Action

Models: 510 520

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Problem Solving

Problem Solving Using the LEDs

When diagnosing a problem with the router, note that the problem is often indicated by the states of the router’s LEDs. Table A-3 lists the states of the LEDs for various error conditions that can occur during initial installation of the device, along with probable causes and corrective actions to take.

Table A-3. LED States

Symptom

Probable Cause

Corrective Action

 

 

 

 

 

 

All LEDs are

The router does not

Secure the power cables at the

off.

have power.

back cover and between the

 

 

power supply and wall outlet.

 

 

Check the wall outlet using

 

 

another appliance or light, or

 

 

plug the power cord into

 

 

another outlet. If no power is

 

 

available, check the wall

 

 

outlet’s circuit breaker.

 

 

Replace the power supply or

 

 

the router if the problem

 

 

persists.

 

 

 

 

Wrong power supply.

Ensure to use only the

 

 

H8767-AA power supply.

 

 

 

Power LED only

Bad Power LED.

Replace the router.

is off.

 

 

 

 

 

Module OK

Self-test failed.

If the LED does not light after

LED is off.

 

5 seconds, reset the router to

 

 

repeat the self-test.

 

 

Check console and reload

 

 

flash.

 

 

If the self-test fails again,

 

 

replace the router.

 

 

 

 

 

Continued on next page ...

A-7

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Cabletron Systems 520, 510 manual Problem Solving Using the LEDs, Symptom Probable Cause Corrective Action

510, 520 specifications

Cabletron Systems was a prominent player in networking technology during the late 20th century, particularly known for its innovative products aimed at improving data transmission capabilities in enterprise environments. Among its notable offerings were the Cabletron Systems 520 and 510 series, which stood out for their advanced features and robust performance.

The Cabletron 520 was designed to enhance network efficiency and reliability, serving as a multiport bridge or router. Its architecture supported a range of network protocols, allowing organizations to seamlessly integrate various devices and systems. The 520 series was particularly noted for its ability to manage traffic efficiently, thanks to its built-in packet filtering and forwarding capabilities. This made it an ideal choice for enterprises looking to streamline their network operations while ensuring high availability.

In contrast, the Cabletron 510 served as a versatile switching device capable of supporting Ethernet and Token Ring technologies. The 510 model featured multiple ports, facilitating extensive connectivity options that enabled a greater number of users to access network resources simultaneously. Its ability to dynamically allocate bandwidth was a key characteristic, ensuring that critical applications received the necessary resources while minimizing latency for other users.

One of the standout features of both models was their scalability. Organizations could begin with a certain number of ports and expand their network infrastructure as needed without requiring a complete overhaul. This flexibility was crucial for businesses experiencing growth or changes in their networking needs.

Security was another area where the Cabletron systems excelled. They incorporated several hardware and software mechanisms for secure data transmission, including support for virtual LANs (VLANs) and access control lists (ACLs). These features allowed administrators to define rules for data traffic, enhancing the overall security posture of the network.

Overall, Cabletron Systems’ 520 and 510 series represented a significant advancement in networking technology during their time. With their focus on performance, scalability, and security, these products offered organizations the tools they needed to build and maintain efficient and reliable networks. The innovations introduced by Cabletron set a high standard, influencing the development of subsequent networking devices and technologies.