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Configuration Guide - Reliability

S2720, S5700, and S6720 V200R013C00

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, MAC Swap Loopback Configuration, EFM Configuration, CFM Configuration, Y.1731 Configuration.
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(Optional) Configuring the VRRP Version Number

(Optional) Configuring the VRRP Version Number


IPv4 VRRP supports VRRPv2 and VRRPv3. If devices in a VRRP group use different VRRP versions, VRRP Advertisement packets will fail to be forwarded.
  • A VRRPv2 group can send and receive only VRRPv2 Advertisement packets, and discards received VRRPv3 Advertisement packets.
  • A VRRPv3 group can send and receive both VRRPv2 and VRRPv3 Advertisement packets. You can configure the mode in which VRRPv3 Advertisement packets are sent. The mode can be v2-only, v3-only, or v2v3-both.


  1. Run system-view

    The system view is displayed.

  2. Run vrrp version { v2 | v3 }

    The VRRP version number is set.

    By default, VRRPv2 is used.

    If VRRPv3 is used, run the vrrp version-3 send-packet-mode { v2-only | v3-only | v2v3-both } command to set the mode in which VRRPv3 Advertisement packets are sent. The default mode is v3-only.

Updated: 2019-04-04

Document ID: EDOC1100065682

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