3. Troubleshooting Functional Failures in Operation

Table 3-34: Retention of Route Information to Prefix Distribution Target

Retention Information

 

 

Event and Retention

 

Concerning Prefix

 

 

 

 

 

 

Server Function Restart

Routing Manager Restart

This System Restart

 

 

 

 

 

 

 

 

 

 

Command

Server

 

 

 

 

Execution

Failure

 

 

 

 

 

 

 

Route information to client

Y

Y/N

Y

N

 

 

 

 

 

 

(Legend)

Y: Guaranteed

Y/N: Not guaranteed (each status information may be retained)

N: Not guaranteed (re-setting required because of initialization)

Note

Route management functions required when setting route information to prefix distribution target.

For other failures, see "3.9.1 Communication Is Disabled or Is Disconnected."

(a) Checking route information

When using the automatic route setting feature to the prefix distribution targets from the IPv6DHCP server, the route information after prefix distribution can be checked using the show ipv6 route command with "-s" parameter specified.

Figure 3-15: Check for Routing Information Using Operation Command

> show ipv6 route -s

 

 

 

 

 

Total: 10routes

Next Hop

Interface

Metric

Protocol

Age

Destination

3ffe:1234:5678::/48

::1

tokyo

0/0

Static

45m

<Active Gateway

Dhcp>

osaka

0/0

Static

23m

3ffe:aaaa:1234::/48

::1

<Active Gateway

Dhcp>

 

 

 

 

:

 

 

 

 

 

>

 

 

 

 

 

(b) Reconfiguring route information

When using automatic route information setting feature of the IPv6DHCP server of this system to prefix distribution target, if an event occurs that deletes route information due to a failure, etc., restoration requires the redistribution of prefixes. Execute operations for the re-acquisition of prefix information by the client system.

(3) If DUID of this system conflicts with other system

If DUID conflicts in the configurations with 2 or more IPv6DHCP servers including this system in the same network, reconfigure the DUID in this system according to the following procedure.

(a) Deleting the file containing DUID information

The DUID of this system is stored in /usr/var/dhcp6/dhcp6s_duid. Explicitly delete the file from the operation command line using rm.

(b) Reproducing the DUID

After deleting the DUID file, restart the server using the restart ipv6 dhcp server command or add an IPv6DHCP server setting to the configuration information. The IPv6DHCP server acquires the MAC address of the IPv6 interface used as IPv6DHCP server interface when restarted and generates new DUID based on that information and time information.

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NEC IP8800/S6300 If Duid of this system conflicts with other system, Reconfiguring route information, Reproducing the Duid
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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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