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Configuration Guide - IP Service

CloudEngine 12800 and 12800E V200R005C00

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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Configuring an Outbound Interface to Fragment IP Packets

Configuring an Outbound Interface to Fragment IP Packets


During actual packet forwarding, the length of an IP packet may exceed the MTU value. Packets whose length exceeds the MTU value are discarded. Therefore, IP packet fragmentation can be enabled so that the system sets the DF field of IP packets to 0 and fragments the packets. In this way, all IP packets can be forwarded.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run clear ip df

    The IP packet fragmentation is enabled on an outbound interface.

    By default, an outbound interface does not fragment IP packets.


    The device can forcibly fragment only the IP packets generated by the device but not the IP packets forwarded by the device.

  4. Run commit

    The configuration is committed.

Updated: 2019-04-18

Document ID: EDOC1100039535

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