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S12700 V200R011C10 Configuration Guide - VPN

This document describes the VPN configuration procedures and provides configuration examples.
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(Optional) Configuring Ethernet over GRE Reliability

(Optional) Configuring Ethernet over GRE Reliability


A VE interface will become invalid if the card where the interface resides is faulty or absent. In this case, services will be interrupted. To solve this problem, a tunnel interface on a switch can be bound to two VE interfaces. Only one VE interface takes effect at a time. If a VE interface fails, traffic is switched to the other VE interface.


  • Perform operations in Configuring Basic Ethernet over GRE Functions repeatedly to configure two VE interfaces and bind them to the same tunnel interface.


    Ensure that the two VE interfaces have the same configuration.

    If the faulty VE interface becomes valid again, service traffic will not be switched back to it.

Updated: 2019-04-01

Document ID: EDOC1000178118

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