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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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Clearing ARP Entries

Clearing ARP Entries


After ARP entries are cleared, mappings between IP addresses and MAC addresses are deleted. As a result, users may not access specified nodes. Exercise caution when you clear ARP entries.


  • Run the reset arp { all | dynamic ip ip-address [ vpn-instance vpn-instance ] | interface interface-type interface-number [ ip ip-address ] | vpn-instance vpn-instance } command in user view to clear dynamic ARP entries in the ARP mapping table.
  • Run the reset arp l2-proxy user vlan vlan-id [ ip ip-address | interface interface-type interface-number ] command in user view to clear ARP snooping entries.

    The CE12800E configured with ED-E, EG-E, and EGA-E series cards does not support the command.

  • Run the reset arp fast-reply slot slot-id statistics command in user view to clear statistics on fast ARP Reply packets.
  • Run the reset arp packet statistics [ interface [ interface-type interface-number ] ] command in user view to clear ARP packet statistics.
Updated: 2019-04-18

Document ID: EDOC1100039535

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