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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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Maintaining ARP

Maintaining ARP

Maintaining ARP includes clearing ARP entries and monitoring ARP running status.

Clearing ARP Entries

Context

ARP entries cannot be restored after being cleared. When you delete static ARP entries, the ( arp static ) command is also deleted. Exercise caution when you delete the ARP entries.

Procedure

  • Run the reset arp { dynamic [ ip ip-address ] | interface interface-type interface-number [ ip ip-address ] | static } command to clear ARP entries in the ARP mapping table.

Monitoring the ARP Running Status

Context

Monitoring the ARP running status includes checking ARP mapping entries, strict ARP entry learning, ARP packet statistics, ARP packet processing rate, and maximum number of ARP entries learnt by an interface.

Procedure

  • Run the display arp [ all | brief ] command in any view to check all ARP mapping entries.
  • Run the display arp interface interface-type interface-number command in any view to check ARP mapping entries of a specified interface.
  • Run the display arp network net-number [ net-mask | mask-length ] [ dynamic | static ] command in any view to check ARP mapping entries of a specified network segment.
  • Run the display arp statistics { all | interface interface-type interface-number } command in any view to check ARP entry statistics.
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Updated: 2019-01-11

Document ID: EDOC1000176006

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