Enterprises adopting SD-WAN or SASE often worry about replacing MPLS with Internet-based last‑mile access, which can feel unpredictable without a single provider or formal SLAs. While MPLS offers controlled performance, shifting to Internet connectivity delivers major advantages such as lower costs, faster site deployment, greater flexibility, improved responsiveness to network changes, and broader global reach. With the right architecture, organizations can still achieve reliable, SLA‑like performance while benefiting from the agility and innovation that MPLS cannot match.

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