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CLI-based Configuration Guide - VPN

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes VPN features on the device and provides configuration procedures and configuration examples.
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A2A VPN Redundancy

A2A VPN Redundancy

To improve network reliability, redundant links can be deployed for GMs (link redundancy) or a GM can register with four KSs (KS redundancy).

Link Redundancy

As shown in Figure 6-6, each GM has two egress links that have the same group ID and are bound with different GDOI policy groups. The egress links register with the KS and download the same GDOI policies. When traffic needs to be forwarded, the GM selects the outbound interface based on routing information. If any link fails, traffic is switched to the other link based on route convergence, ensuring uninterrupted traffic between the GMs and service availability.

Figure 6-6  Link redundancy

KS Redundancy

As shown in Figure 6-7, each GM registers with two KSs: one primary KS and one secondary KS. Generally, a GM registers with the primary KS. If the primary KS fails, the GM registers with the secondary KS. This improves reliability of the entire network.

Figure 6-7  KS redundancy

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Updated: 2019-08-07

Document ID: EDOC1100033725

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