How a leading U.S. energy company unified the U.S., Europe, Brazil, Malaysia, and two on-premises network domains on AWS Cloud WAN

About Client

The client is a leading global energy technology company in US, co-headquartered in Texas, and London. As one of the world's largest providers of oilfield services, industrial solutions, and energy technologies, it delivers a broad portfolio of products and services that support oil and gas exploration and production, as well as a wide range of energy and industrial applications worldwide. 

Key Challenges

The client needed to unify a fragmented global network spanning multiple AWS Regions and on-premises environments. Its AWS estate spanned the U.S., Europe, Brazil, and Malaysia, while two distinct on-premises domains carried their own routing and security requirements.

Solution

Microland deployed an AWS Cloud WAN core network connecting the United States, Europe, Brazil, and Malaysia with the customer’s on-premises Enterprise and FC (facility/field-control) networks. The solution uses five Cloud WAN segments to enforce network isolation through policy rather than manual route-table management and integrates Palo Alto Networks next-generation firewalls (NGFW) attached to regional Transit Gateways for centralized traffic inspection. A dedicated “OnPrem Return” segment guarantees symmetric routing through the firewall stack which is one of the hardest problems in inspected multi-region architectures.

Business Value Delivered

Cloud WAN’s segment model mapped one-to-one onto the customer’s security domains, and its policy language expressed every requirement including the subtle one-way propagation behind firewall symmetry declaratively. Pairing Cloud WAN for the global backbone with Transit Gateway for regional Palo Alto service insertion gave the customer both: a global policy plane and a proven regional inspection pattern.