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Configuration Guide - Reliability

S7700 and S9700 V200R011C10

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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Setting the Device Priority in a VRRP Group

Setting the Device Priority in a VRRP Group

Context

The device with a higher priority in a VRRP group becomes the master. You can specify the master to forward traffic by setting the device priority.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  4. Run vrrp vrid virtual-router-id priority priority-value

    The device priority in a VRRP group is set.

    By default, the device priority is 100. A larger value indicates a higher priority of VRRP Advertisement packets.

    • Priority 0 is reserved in the system. Priority 255 is reserved for the IP address owner. The priority ranges from 1 to 254.

    • The priority of an IP address owner is fixed at 255 and cannot be manually changed. You can run the vrrp vrid virtual-router-id priority priority-value command to configure a non-255 priority for an IP address owner, but the configured priority does not take effect. If a VRRP device is no longer an IP address owner, the configured priority is used.

    • In a VRRP group, if devices have the same priority and attempt to become the master simultaneously, the device on an interface with the largest IP address becomes the master. The device that first switches to the Master state becomes the master, and other backups remain unchanged.

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Updated: 2019-09-23

N. documento: EDOC1000178318

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