3.Troubleshooting Functional Failures in Operation

Table 3-7: Check and Action for Port Status

No.

Port Status

Problem

Action

 

 

 

 

1

active up

The port is operating normally.

None

 

 

 

 

2

active down

Line failure occurred in the port.

According to the log of the port displayed by the show logging

 

 

 

command, see the corresponding part in manual "Message Log

 

 

 

Reference" and follow [Action] described.

 

 

 

 

3

inactive

The inactive state is set by one of the

• If the inactive state is set by standby link function of link

 

 

following:

aggregation, it is a normal operation and therefore do not set the

 

 

• The inactivate command

active state using the activate command. Check standby link

 

 

• Standby link of link aggregation

function using the show channel-groupcommand with

 

 

• BPDU guard function of a spanning

"detail" parameter specified.

 

 

tree

• If the inactive state is set by the BPDU guard function of a

 

 

• GSRP port-reset function

spanning tree, review the configuration of the opposite system.

 

 

• Failure detected by the IEEE802.3ah/

Set up the configuration so that this system will not receive

 

 

BPDU. Using the activate command, set the port to the active

 

 

UDLD function

 

 

• Port blocked by L2 loop detection

state. Check BPDU guard function using the show

 

 

function

spanning-treecommand with "detail" parameter specified.

 

 

• Port blocked by the storm control

• If the inactive state is set by the port reset function of GSRP, the

 

 

active state automatically restores. Since this is a normal

 

 

function

 

 

operation, do not set to the active state using the activate

 

 

 

 

 

 

command.

 

 

 

• If the inactive state is set by detection of one-way link failure or

 

 

 

L2 loop by IEEE802.3ah/UDLD function, see

 

 

 

"3.18 Communication Failure on IEEE802.3ah/UDLD Function."

 

 

 

After recovery from failure, use the activate command to

 

 

 

activate the port.

 

 

 

• When ports blocked by L2 loop detection function are in inactive

 

 

 

status, change the configuration, which causes the loop. And then

 

 

 

enable the inactive port by using the activate command. At

 

 

 

this time, if loop-detection auto-restore-time has

 

 

 

been set by the configuration command, the ports will change

 

 

 

status to active status automatically.

 

 

 

• If the inactive state is set by the storm control function, use the

 

 

 

activate command to activate the port after LAN recovered

 

 

 

from the storm.

 

 

 

• If you want to set the active in any other case, confirm that the

 

 

 

cable is connected to the port to be used and use the activate

 

 

 

command to activate the port.

4

test

The port is in the line test by the test

To restart communication, execute the no test interfaces

 

 

interfaces command.

command to stop the line test and activate the port with the

 

 

 

activate command.

5

fault

Hardware of the port is faulty.

According to the log of the port displayed by the show logging

 

 

 

command, see the corresponding part in manual "Message Log

 

 

 

Reference" and follow [Action] described.

 

 

 

 

6

initialize

The port is being initialized.

Wait until initialization completes.

 

 

 

 

7

disable or

Configuration command shutdown is

Confirm that the cable is connected to the port to be used and enter

 

locked

set.

configuration command no shutdown to activate the port.

(3) Checking statistical information

Enter the show port statistics command to check the number of sent/received packets and the number of discarded packets on all ports installed on this system.

28

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NEC IP8800/S6600 manual Checking statistical information, Check and Action for Port Status, Port Status Problem Action
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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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