Network architecture and security policy were once treated as separate workstreams in VMware environments. In a VCF world, where NSX overlays, distributed firewalling, and load balancing are built into the platform, these capabilities are inseparable. ClearBridge’s Networking & Security practice helps organizations design, deploy, and harden the NSX, vDefend, and Avi Load Balancer layers of their VCF environment so that performance and protection advance together, not as competing priorities.
What’s Included
Overlay, edge, and routing design
NSX overlay networking replaces traditional VLAN sprawl with a software-defined fabric, but only when the edge and routing architecture is designed correctly for your traffic patterns and failure domains. We design overlay topologies that scale with your VCF environment rather than becoming a bottleneck.
Micro-segmentation and firewall policy
Distributed firewalling is one of NSX’s most powerful capabilities, and one of the easiest to get wrong. We build micro-segmentation policies based on actual application behavior, reducing the risk of lateral movement without breaking the applications your business depends on.
IDS/IPS and threat prevention
With vDefend (formerly NSX Advanced Threat Prevention), east-west traffic inside the data center gets the same scrutiny as traffic crossing the perimeter. Our team configures intrusion detection and prevention policies tuned to your environment’s real risk profile.
Load balancer migration to Avi
Many organizations are consolidating legacy load balancing platforms onto Avi Load Balancer as part of their VCF modernization. We plan and execute these migrations to minimize application disruption while unlocking Avi’s application-aware traffic management.
Why It Matters
Security incidents increasingly originate or spread inside the data center, not just at the perimeter. A flat, under-segmented VCF network is a single breach away from becoming a much larger incident. At the same time, over-aggressive segmentation without proper application mapping can break production workloads and generate more support tickets than it prevents attacks.
The organizations that get this right treat networking and security as one design problem: overlay architecture, firewall policy, and threat detection built together, validated against real traffic, and documented well enough to pass audit and accreditation review. That’s especially true for regulated industries and government environments, where security architecture must meet compliance frameworks in addition to operational requirements.
Proven in the Field
This is one of the deepest areas of ClearBridge’s VCF track record. In Securing a Government VMware Cloud Foundation Environment with NSX and vDefend, our team implemented NSX and vDefend together to secure a government VCF environment, exactly the overlay-plus-threat-prevention approach this offering is built around.
We’ve also helped customers simplify network architecture for performance at scale. Streamlining Retail Network Operations with NSX: Simplifying Architecture for Performance and Scalability shows how NSX can reduce architectural complexity for a retail environment while improving both performance and scalability, proof that security-forward design doesn’t have to come at the cost of speed.
For customers where security validation itself is the deliverable, Strengthening VMware Cloud Foundation Security for a Global Financial Services Leader demonstrates ClearBridge’s work validating VCF security posture against Global Information Security standards for a major financial institution.
Where to Start
Whether you’re designing NSX overlay architecture from scratch, tightening micro-segmentation policy, standing up vDefend threat prevention, or migrating off a legacy load balancer to Avi, ClearBridge’s Networking & Security team builds it as a single coherent architecture, not a patchwork of point solutions. Explore the full ClearBridge VCF Delivery Portfolio to see how this connects to infrastructure, automation, operations, and resiliency, or review more engagements in the Case Studies Archive.
Ready to assess your NSX and security posture? Reach out to ClearBridge to get started.
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