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NE20E-S2 V800R010C10SPC500 Configuration Guide - Security 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - Security
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Maintaining ARP Security

Maintaining ARP Security

This section describes how to reset Address Resolution Protocol (ARP) security statistics and monitor the ARP status.

Clearing ARP Security Statistics

This section describes how to clear Address Resolution Protocol (ARP) security statistics

Background Information

ARP security statistics cannot be restored after they are cleared. Exercise caution before clearing the statistics.

Procedure

  • Run the reset arp packet statistics[ slot slot-id ] command in the user view to reset ARP statistics of a specified or all boards.
  • Run the reset arp packet statistics interface [ interface-type interface-number ] command in the user view to reset ARP statistics of a specified or all Layer 3 interfaces.
  • Run the reset arp-check { check-destination-ip | check-valid } statistics slot slot-id command in the user view to clear statistics about discarded invalid ARP packets on a specific interface board.

    This command is supported only on the Admin-VS.

Monitoring the Operating Status of ARP Security

This section describes how to monitor the operating status of Address Resolution Protocol (ARP) security.

Context

For routine maintenance, you can run the following commands in any view to check the operating status of ARP security.

Procedure

  • Run the display arp packet statistics [ slot slot-id | interface [ interface-type interface-number ] ] command in any view to check statistics on ARP packets.

Clearing ARP Bidirectional Isolation Statistics on an Interface Board

You can clear ARP bidirectional isolation statistics on an interface board if you do not need the statistics any more.

Context

ARP bidirectional isolation statistics on an interface board cannot be restored after they are cleared. Exercise caution before clearing the statistics.

Procedure

  • Run the reset arp-safeguard statistics slot slot-id command in the user view to clear ARP bidirectional isolation statistics on an interface board.

    This command is supported only on the Admin-VS.

  • Run the reset arp-check { check-destination-ip | check-valid } statistics slot slot-id command in the user view to clear statistics about discarded invalid ARP packets on a specific interface board.

    This command is supported only on the Admin-VS.

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Updated: 2019-01-02

Document ID: EDOC1100055397

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