3. Troubleshooting Functional Failures in Operation

No.

Troubleshooting Steps and Command

 

Action

 

 

 

2

Check the setting of failed port status using

Check the status of each port. If all ports in a link aggregation group are Down, the

 

the show channel-group command

link aggregation group is also Down.

 

with "detail" parameter specified.

Take the action below for the Down port depending on the Reason displayed.

 

 

•

CH Disabled

 

 

 

The link aggregation group is Disabled and Down.

 

 

•

Port Down

 

 

 

The link is down. See "3.4 Network Interface Communication Failure."

 

 

•

Port Speed Unmatch

 

 

 

Due to mismatch of the line speed on other ports in the link aggregation group,

 

 

 

a degeneration has occurred. To avoid degeneration, match the speed on all

 

 

 

ports in the link aggregation group.

 

 

•

Duplex Half

 

 

 

The mode is Half and the degenerated status has occurred. To avoid degenera-

 

 

 

tion, set the Duplex mode to Full.

 

 

•

Port Selecting

 

 

 

Because the port aggregation conditions are being checked, the degeneration

 

 

 

has occurred. Wait until the check completes. If the degeneration is not recov-

 

 

 

ered though you wait for a while, check to see the operation status and settings

 

 

 

of the remote system.

 

 

•

Waiting Partner Synchronization

 

 

 

The system has finished the port aggregation condition check and is waiting for

 

 

 

the synchronization of the connected port, so the degeneration has occurred. If

 

 

 

recovery does not occur after a while, check the remote system operation status

 

 

 

and settings.

 

 

• Partner System ID Unmatch

 

 

 

Partner System ID received from the connected port does not match the Partner

 

 

 

System ID of the group. As a result, the degeneration has occurred. To avoid de-

 

 

 

generation, check the remote system operation and wiring.

 

 

•

LACPDU Expired

 

 

 

Since the valid LACPDU time from the connected port has expired, the port has

 

 

 

degenerated. Check the LACPDU statistics using the show chan-

 

 

 

nel-group statistics command with "lacp" parameter specified. Also,

 

 

 

check the remote system operation status.

 

 

•

Partner Key Unmatch

 

 

 

Since Key received from the connected port does not match Partner Key of the

 

 

 

group, the degeneration has occurred. To avoid degeneration, check the remote

 

 

 

system operation and wiring.

 

 

•

Partner Aggregation Individual

 

 

 

Since link aggregation disabled is received from the connected port, the degen-

 

 

 

eration has occurred. To avoid degeneration, check the remote system operation

 

 

 

and settings.

 

 

• Partner Synchronization OUT_OF_SYNC

 

 

 

Since synchronization disabled is received from the connected port, the degen-

 

 

 

eration has occurred. (This occurs if configuration is changed on this system or

 

 

 

the line is blocked on the remote system.)

 

 

•

Port Moved

 

 

 

The connected port was connected with another port. Check the wiring.

 

 

• Operation of Detach Port Limit

 

 

 

Since the detached port limiting function is activated, the link aggregation group

 

 

 

is Down.

 

 

 

 

37

Page 98 Page 100
Page 99
Image 99
NEC IP8800/S6300 Check the setting of failed port status using, Link aggregation group is also Down, CH Disabled, Is Down
Page 98 Page 100

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.
Top Page Image Contents