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S12700 V200R011C10 Configuration Guide - VPN

This document describes the VPN configuration procedures and provides configuration examples.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
VPN NSR

VPN NSR

As networks develop fast, the demand for the triple play services of the Public Switched Telephone Network (PSTN), TV network, and Internet becomes more and more stringent. Operators pose high requirements for reliability on IP networks. Non-Stop Routing (NSR), as a High Availability (HA) solution, is therefore introduced.

NSR ensures that the control plane of a neighbor does not sense the fault on the control plane of the local device which provides a slave control plane. In this process, the neighbor relationships set up through specific routing protocols, MPLS, and other protocols that carry services are not interrupted.

As an HA solution, NSR ensures that user services are not affected or least affected in the case of device failures.

During the master/slave switchover, VPN NSR ensures the continuous forwarding and continuous advertisement of VPN routes. In this process, the neighbor relationships are not affected, with neighbors not knowing the switchover on the local device. This ensures uninterrupted transmission of VPN services.

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Updated: 2019-04-01

Document ID: EDOC1000178118

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