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Configuration Guide - VXLAN

CloudEngine 12800 and 12800E V200R003C00

This document describes the configurations of VXLAN.
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(Optional) Disabling a VBDIF Interface from Sending ARP Miss Messages

(Optional) Disabling a VBDIF Interface from Sending ARP Miss Messages

Context

When the device wants to communicate with another device in the same network segment, it queries ARP entries to direct packet forwarding. If the device fails to find the corresponding ARP entry from the forwarding plane, it sends an ARP Miss message to the CPU. The ARP Miss message will trigger the device to send an ARP broadcast packet to start ARP learning. In some cases, customers may want to limit the number of broadcast packets on the VXLAN network. You can then disable a VBDIF interface from sending ARP Miss messages to achieve this purpose.

After a VBDIF interface is disabled from sending ARP Miss messages, the device cannot learn ARP entries from this VBDIF interface, so ARP entries must be manually configured on it.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface vbdif bd-id

    A VBDIF interface is created and the VBDIF interface view is displayed.

  3. Run arp miss disable

    The VBDIF interface is disabled from sending ARP Miss messages.

    By default, a VBDIF interface can send ARP Miss messages.

  4. Run commit

    The configuration is committed.

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Updated: 2019-05-05

Document ID: EDOC1100004207

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