WAN as-a-Service already has redundancy and diversity baked into the private core network, including a fully meshed architecture and multi-path capabilities for access and core network connectivity. We use two or more links from different network providers, and we add even more redundancy and diversity through features like dual VPN tunnels and backup Internet links from firewall to firewall.
The High Availability Add-on provides additional redundancy benefits for mission-critical sites. The add-on includes geographical redundancy or disaster recovery, where a mission-critical site, such as the global data center, can be connected to multiple POPs. Additionally, enterprises can be provided with an additional Network Access Point (ANAP), which is a last-mile optimization device. Thus, we deliver the highest level of availability (with SLAs) to enterprise customers.
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