Enterprise Network Architecture
Topology engineered for predictable scale, performance, and control.
The network is the substrate everything else runs on. When it is designed well, it disappears, applications are fast, failures are contained, and growth is a configuration change rather than a rebuild. When it is designed poorly, every other initiative inherits the constraint.
Foundry designs enterprise networks from first principles: clear hierarchy, deterministic routing, bounded failure domains, and a topology that scales linearly with demand. We work across campus, branch, WAN and data centre, and we design for the operational reality of the teams who will run it.
Scope, specified.
Campus & Branch LAN Design
Structured, hierarchical designs with deterministic forwarding, fast convergence, and clean segmentation from access to core.
WAN & SD-WAN Architecture
Transport-independent overlays with application-aware routing, central policy, and resilient multi-path connectivity across sites and regions.
Routing Design
BGP and OSPF designs with summarisation, route control and predictable failover, no accidental transit, no surprise reconvergence.
Data Centre Fabrics
Spine-leaf and VXLAN/EVPN fabrics on Nexus that deliver non-blocking east-west capacity and linear scale.
High-Level & Low-Level Design
Documentation engineers can build from and auditors can trust, HLDs, LLDs, addressing plans, and migration runbooks.
Architecture Review & Remediation
Independent assessment of an existing estate, with a prioritised roadmap to resolve risk, debt and scaling limits.
A disciplined path.
- 01
Discover
We map the current estate, traffic patterns, constraints and business drivers, the real requirements, not the wish list.
- 02
Design
We produce a target architecture and a phased path to reach it, validated against resilience, scale and operational fit.
- 03
Validate
Designs are pressure-tested against failure scenarios, capacity ceilings and the team's ability to operate them.
- 04
Transition
We deliver build specifications and migration runbooks that protect service throughout the cut-over.
What changes.
Scale that grows with demand instead of forcing periodic re-architecture.
Failure domains contained by design, so faults never cascade across the estate.
Every design handed over as buildable, auditable specifications.
Engineering-led from the first conversation.
You talk to the architect who will design it. Bring us the enterprise network architecture problem and we'll respond with engineering judgement.
Discuss your project