3. Troubleshooting Functional Failures in Operation

Table 3-9: Troubleshooting for Failed 10BASE-T/100BASE-TX/1000BASE-T

No.

 

Troubleshooting Steps

Problem

Action

 

 

 

 

 

1

According to the failure

Line quality is

Check to see if the cable type is correct. For the fiber optics type, see

 

statistical information

degraded.

"Hardware Installation Guide."

 

displayed by the show

 

 

 

 

Check to see if MDI-X is selected for pin mapping in the case of the

 

interfaces command,

 

 

 

following:

 

check to see if the statistical

 

 

 

• The port setting is fixed.

 

information below is

 

 

counted for the port. If

 

• The port setting is auto negations and auto MDIX function is

 

counted, see "Problem" and

 

disabled.

 

"Action" columns.

 

Check the cable length. For the cable length, see "Hardware Installation

 

•

Link down

 

 

 

Guide."

 

 

 

 

 

 

 

 

 

 

 

Check to see if the cable is connected correctly.

 

 

 

 

 

 

 

 

 

 

 

Replace with the connection interface supported by this system. For the

 

 

 

 

 

connection interfaces supported by this system, see "Configuration

 

 

 

 

 

Settings."

 

 

 

 

 

 

 

 

 

 

 

Perform the line test on this system and confirm that there is no problem

 

 

 

 

 

in the receiving function. See the execution results of the no test

 

 

 

 

 

interfaces (Ethernet) command and follow the indicated actions.

 

 

 

 

 

For the test type to be specified, see "6.1 Testing Line."

2

According to the receiving

Line quality is

Check to see if the cable type is correct. For the fiber optics type, see

 

error statistical information

degraded.

"Hardware Installation Guide."

 

displayed by the show

 

 

 

 

Check to see if MDI-X is selected for pin mapping in the case of the

 

interfaces command,

 

 

 

following:

 

check to see if the statistical

 

 

 

• The port setting is fixed.

 

information below is

 

 

counted for the port. If

 

• The port setting is auto negations, and auto MDIX function is

 

counted, see "Problem" and

 

disabled.

 

"Action" columns.

 

Check the cable length. For the cable length, see "Hardware Installation

 

•

CRC errors

 

 

 

Guide."

 

•

Symbol errors

 

 

 

 

Check to see if the cable is connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace with the connection interface supported by this system. For the

 

 

 

 

 

connection interfaces supported by this system, see "Configuration

 

 

 

 

 

Settings."

 

 

 

 

 

 

 

 

 

 

 

Perform the line test on this system and confirm that there is no problem

 

 

 

 

 

in the receiving function. See the execution results of the no test

 

 

 

 

 

interfaces command and follow the indicated actions. For the test

 

 

 

 

 

type to be specified, see "6.1 Testing Line."

3

According to the failure

Pin mapping of the

Correct the pin mapping. For pin mapping, see the manual

 

statistical information

cable is not correct.

"Configuration Settings."

 

displayed by the show

 

 

 

interfaces command,

 

 

 

check to see if the statistical

 

 

 

information below is

 

 

 

counted for the port. If

 

 

 

counted, see "Problem" and

 

 

 

"Action" columns.

 

 

 

• MDI cross over changed

 

 

 

 

 

 

 

4

Check the line type/line

An incompatible

Check to see if the cable type is correct. For the fiber optics type, see

 

speed for the port according

cable is used.

"Hardware Installation Guide."

 

to the "Port detail"

 

 

 

 

 

The values set for

Use the same values as the remote system in configuration commands

 

information generated by the

 

configuration

speed and duplex.

 

show interfaces

 

command.

commands speed

 

 

If the line type/line speed is

and duplex are

 

 

not correct, see the

incompatible with

 

 

the target system.

 

 

"Problem" and "Action"

 

 

 

 

 

columns.

 

 

 

 

 

 

 

 

31

Page 92 Page 94
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Image 93
NEC IP8800/S6700 manual Troubleshooting for Failed 10BASE-T/100BASE-TX/1000BASE-T, Troubleshooting Steps Problem Action
Page 92 Page 94

IP8800/S6700, IP8800/S3600, IP8800/S6600, IP8800/S6300, IP8800/S2400 specifications

The NEC IP8800 series comprises a range of advanced networking solutions designed for various applications ranging from enterprise networking to service provider environments. This series includes models such as the IP8800/S2400, IP8800/S3600, IP8800/S6300, IP8800/S6600, and IP8800/S6700, each with its unique set of features and capabilities aimed at delivering robust performance, security, and scalability.

The IP8800/S2400 is an entry-level switch tailored for small to medium enterprises. It features a compact design and high port density, making it ideal for network edge applications. The model supports both Layer 2 and Layer 3 switching capabilities, enabling efficient traffic management. With its robust security features, including access control lists and support for VLANs, the IP8800/S2400 ensures secure connectivity.

Moving to the IP8800/S3600, this switch is designed for data center environments and offers high throughput with advanced routing capabilities. It is equipped with high-capacity 10G and 40G Ethernet ports, facilitating faster data transfer rates. The S3600 supports various protocols such as MPLS and Segment Routing, enhancing its ability to manage complex network architectures. Its energy-efficient design also helps reduce operational costs.

The IP8800/S6300 is tailored for high-performance networking scenarios, featuring a flexible architecture that supports both traditional and cloud-based services. With extensive QoS capabilities, the S6300 optimizes traffic flow and manages bandwidth efficiently, ensuring high-quality service delivery. Its virtualization support allows for easier integration into modern, software-defined networking environments.

The IP8800/S6600 provides a comprehensive solution for service providers and large enterprises, boasting high scalability and modularity. This model supports advanced features such as network slicing and the ability to handle high-density 100G interfaces. Its robust management tools, including centralized control and automation capabilities, simplify network operations significantly.

Finally, the IP8800/S6700 represents the pinnacle of the series, designed for mission-critical applications requiring the utmost reliability and performance. It supports advanced analytics, AI-driven insights, and comprehensive telemetry, enabling proactive network management. With high availability features and extensive redundancy options, the S6700 ensures continuous operation, making it ideal for core network functions.

In summary, the NEC IP8800 series offers a versatile range of switches that combine advanced technologies, high performance, and robust security features, catering to various networking needs across different industries. Each model is designed to provide not only superior connectivity but also the flexibility and scalability required in today’s fast-paced digital landscape.
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