3Com Router 5000 and Router 6000 v2.41

Chapter 3

Module Guide

Multifunctional Interface Modules (Router 5000)

3.4.5 Troubleshooting

1)Symptom 1: All the LEDs are OFF after the Router is started up.

Troubleshooting: All the LEDs should fast blink once upon the startup of the device. They are keeping ON if the module or some hardware of the module is not powered on properly. Check whether the power supply is correctly connected. If the power supply is operating, the fuse might be blown or anomalies have occurred to the Complex Programmable Logic Device (CPLD). In this case, please contact your agent.

2)Symptom 2: All the LEDs are steadily ON after the device is started up.

Troubleshooting: All the LEDs should fast blink once upon the startup of the device and then go OFF immediately, if the processor of the module starts working. All the LEDs are ON steadily, if the system bus of the module is not in normal state or anomalies have occurred to the CPLD.

3)Symptom 3: RUN LED is ON steadily.

Troubleshooting: When the module is operating, RUN LED should fast blinks, instead of keeping ON steadily. RUN LED is steadily ON, if the module is powered up but not started normally, or if the module is reset forcibly. If at the same time other one or two LEDs (such as ACT, SPEED, and DENY) are ON, it is likely the problem of the NDEC or the Router. RUN LED keeps ON after several times of blinking, if module initialization fails.

4)Symptom 4: RUN LED is fast blinking all the time when the device is being started up.

Troubleshooting: After the Router is powered ON, RUN LED fast blinks all the time until module initialization is completed. During the process, if DENY LED blinks occasionally, there might be fault in the memory. In this case, please contact your agent for repairing the module. SPEED LED lights during the process, if the module system boot fails. In this case, check the configuration of the system or contact your agent.

5)Symptom 5: RUN LED blinks slowly after the device is started up.

Troubleshooting: If the module is in offline state, the RUN LED blinks slowly. Check that the configuration of the Router is correct, and make sure NEDC is supported.

6)Symptom 6: ACT LED is ON steadily.

Troubleshooting: If the firmware is being upgraded, ACT LED blinks. If the upgrade fails, the LED is ON steadily and you need to upgrade the software again. If the problem still exists, contact your agent.

7)Symptom 7: DENY LED blinks during normal operations.

Troubleshooting: DENY LED blinks during normal operations, if the module performance or capacity is inadequate for encryption processing at a moment. This is not a hardware failure but a phenomenon caused by technical specifications limitation

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3Com 3C13701 3C13751 3C13755 3C13759 3C13840 3C13880 manual Troubleshooting

3C13751, 3C13701, 3C13840, 3C13759, 3C13880 specifications

The 3Com 3C13880 and 3C13840 are notable components within the realm of networking technology, primarily designed for enterprise-grade solutions. These devices belong to the 3Com family, which has long been recognized for its commitment to developing robust networking products tailored to facilitate efficient data transfers and improve connectivity across various platforms.

One of the standout features of the 3C13880 is its high-performance capabilities. This model supports advanced functions such as load balancing and fault tolerance, critical for maintaining optimum network performance in high-demand environments. Additionally, it supports various protocols, including Ethernet and Token Ring, making it versatile and adaptable to existing infrastructure. The device accommodates a wide range of network transmissions, ensuring seamless integration and operation within diverse network ecosystems.

In terms of connectivity, the 3C13880 is equipped with multiple ports, allowing for extensive device interconnectivity. This feature is particularly beneficial in large organization settings, where multiple devices, such as servers and workstations, need to communicate effectively. Coupled with high-speed data transmission rates, this model ensures minimal latency, enhancing overall network efficiency.

On the other hand, the 3C13840 is designed with a focus on cost-efficiency without sacrificing performance. This model provides essential networking features suitable for smaller business environments or those seeking budget-friendly options. It delivers reliable throughput and the ability to support a moderate number of users, making it ideal for small to mid-sized offices.

Both the 3C13880 and 3C13840 incorporate technologies that prioritize security and reliability. Features such as VLAN support and QoS settings help optimize network performance while ensuring the security and integrity of data are maintained. The devices also support management tools that allow administrators to monitor network performance in real time, facilitating quick troubleshooting and enhancing overall network management.

In summary, both the 3Com 3C13880 and 3C13840 devices stand out in networking technology by offering unique features tailored to different organizational needs. While the 3C13880 appeals to enterprises needing high performance and robust capabilities, the 3C13840 provides an accessible option for those requiring effective and budget-conscious networking solutions. The legacy of 3Com continues to be evident in these products, reflecting their innovative approach to addressing the dynamic demands of modern networking.