2 IPv6 Dhcp Troubleshooting | NEC IP8800/S6600, IP8800/S3600

3. Troubleshooting Functional Failures in Operation

1.Log in to the system.

2.Execute show ipv6 route command to check the route information acquired by this system.

3.For IP8800/S6700, IP8800/S6600, and IP8800/S6300, check to see if packets are discarded because of the Null interface. If the route information sending interface resulting a communication failure is null0, packets are discarded because of the Null interface. Review the setting conditions for the static routing function in the configuration.

4.Go to "3.9 IPv6 Network Communication Failure" if the route information on the failed interface is missing in the route information acquired by this system or if the next hop address is invalid.

5.If the route information acquired by this system contains the route information on the failed interface, the following functions set for the interface may have problem. Check these functions.

•RA function

Go to "(7)Checking RA setting information."

(6) Checking filtering/QoS setting information

Certain packets may have been discarded by filtering, or packets may have been discarded through bandwidth monitoring, discarding control, or shaper of the QoS control.

Review if the conditions of filtering and QoS control in the configuration have been set up correctly and if bandwidth monitoring, discarding control, or shaper has been set up appropriately for system operation in system configuration. For the procedure, see "3.23.1 Checking Filtering/QoS Setting Information."

(7) Checking RA setting information

If communication is not possible between this system and the terminal directly connected to this system, address information is not properly distributed by RA. Confirm that the RA function is set correctly in the configuration. Use the following procedure:

1.Log in to the system.

2.Execute the command show ipv6 route and check the RA information of this system.

3.If IPv6 address information is distributed properly, following function that is configured on the failed interface may have problem. Check these functions.

•Filtering/QoS function

See "(8)Checking filtering/QoS setting information."

3.9.2IPv6 DHCP Troubleshooting

(1) Configuration is not distributed

When using the prefix distribution feature of IPv6DHCP server in this system, the following five items are possible causes of service malfunction.

1.The client count is greater than the number of prefix that can be distributed.

2.The client DUID (DHCP Unique Identifier) is not correctly specified.

3.The "ipv6 dhcp server" setting is not correct.

4.Failure during IPv6DHCP operation

5.Other failures

The above problems can be isolated by determining the location of the failure using the following procedure.

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.

NEC IP8800/S6600, IP8800/S3600 manual 2 IPv6 Dhcp Troubleshooting, Checking RA setting information

Models: IP8800/S6700 IP8800/S3600 IP8800/S6600 IP8800/S6300 IP8800/S2400