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Configuration Guide - IP Service

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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(Optional) Configuring Automatic Saving of DHCP Data

(Optional) Configuring Automatic Saving of DHCP Data

Context

When the device functions as the DHCP server, you can enable automatic saving of DHCP data so that IP address information is saved to the storage device periodically.

You can configure the device to save DHCP data to the storage device. When a fault occurs, you can restore data from the storage device.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run dhcp server database enable

    The function that saves DHCP data to the storage device is enabled.

    By default, DHCP data is not saved to the storage device.

    After this command is executed, the system generates the lease.txt and conflict.txt files and saves them in the dhcp folder of the storage device. The two files save the address lease information and address conflict information. Run the command display dhcp server database to check the storage device for saving DHCP data.

  3. Run dhcp server database write-delay interval

    The interval for saving DHCP data is set.

    After the device is configured to automatically save DHCP data, the device saves data every 300 seconds by default and the latest data overwrites the previous data.

  4. Run dhcp server database recover

    The DHCP data in the storage device is restored.

    After this command is executed, the device restores DHCP data from the storage device during a restart.

  5. Run commit

    The configuration is committed.

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Updated: 2019-03-21

Document ID: EDOC1000166635

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