WAN Transformation with SD-WAN: From Leased Lines to Hybrid
Many enterprises in the Pearl River Delta built their WAN on a single leased line per site. As cloud adoption and branch growth accelerate, that model becomes both expensive and rigid. SD-WAN transformation adds internet and cloud links under one policy engine - without a risky big-bang migration.
Key Capabilities
- Phased migration - pilot one HQ and 2-3 branches, measure, then expand.
- Cost model - hybrid links typically reduce WAN spending by about 30% at equal or better performance.
- Cloud on-ramp - direct, optimized paths into mainland and international cloud regions.
- Cutover planning - rollback plans and parallel running for every site.
- Keep what works - existing MPLS can remain as the premium tier of the hybrid design.
Typical Use
A typical transformation starts with a site inventory and application dependency map - both deliverables we prepare in the first week. The final design usually keeps leased lines for the most critical 20% of traffic and moves the rest to cheaper, software-managed links.