Solutions
Data centre solutions
Modernise critical infrastructure without compromising performance or resilience
Data centre solutions for modern enterprise infrastructure
CACI delivers enterprise data centre solutions that help organisations modernise ageing infrastructure, reduce network downtime and support business-critical applications. From data centre network design and infrastructure upgrades to security and hybrid cloud connectivity, we build resilient environments designed around your operational requirements.
Our specialists combine high-performance switching, network virtualisation, scalable data centre fabrics and resilient connectivity to address the challenges of legacy infrastructure, growing workloads and increasingly complex IT environments.
Whether you’re replacing outdated network architecture, consolidating infrastructure or preparing for AI workloads, we help you improve performance, strengthen security and modernise your data centre while minimising disruption to existing operations.
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Powerful and agile
Data centre solutions designed for your infrastructure needs
Data centre network design & architecture
Build scalable, high-performance data centre networks with leaf-spine architectures, Ethernet switching and resilient network fabrics. We optimise east-west traffic using Layer 3 underlays, VXLAN overlays and BGP EVPN to support reliable connectivity across compute, storage and virtualised workloads.
Data centre infrastructure modernisation
Replace ageing infrastructure without unnecessary disruption. From legacy three-tier networks to software-defined networking (SDN), network virtualisation and 100GbE/400GbE Ethernet, we help improve efficiency, reduce technical debt and prepare your data centre for growing application demands and AI workloads.
Secure data centre networking
Protect critical workloads with security built into your data centre architecture. Network segmentation, microsegmentation, Virtual Routing and Forwarding (VRF), virtual firewalls and Zero Trust principles help control east-west traffic, isolate sensitive applications and reduce lateral movement risks.
Hybrid cloud & data centre connectivity
Connect on-premises data centres, private cloud and public cloud environments without compromising performance. Resilient data centre interconnect (DCI), high-bandwidth connectivity, AWS Direct Connect and Azure ExpressRoute help support secure application access, workload mobility and hybrid cloud integration.
Data centre resilience & high availability
Reduce the risk of costly outages with redundant switching, diverse network paths and intelligent failover. Multi-Chassis Link Aggregation (MLAG), Equal-Cost Multi-Path (ECMP) routing, link aggregation and load balancing help eliminate avoidable single points of failure and protect business continuity.
Data centre network optimisation
Remove performance bottlenecks and make better use of existing infrastructure. Traffic analysis, Quality of Service (QoS), capacity planning and network telemetry improve visibility and efficiency, while configuration standardisation and Infrastructure as Code (IaC) support more consistent, manageable network environments.
Trusted for a reason
Why leading brands rely on our data centre solutions
Decades of enterprise networking expertise
With over 20 years of experience, CACI understands the complexities of designing and modernising infrastructure that supports business-critical operations. Our specialists consider application dependencies, network performance, security and resilience together, helping organisations address immediate infrastructure challenges while planning for future growth.
Technology-led, vendor-neutral design
We design data centre solutions around your existing environment and technical requirements, rather than a predefined technology stack. Drawing on our relationships with leading networking vendors, we evaluate suitable architectures and technologies, including Cisco Nexus, Cisco Application Centric Infrastructure (ACI), BGP EVPN and VXLAN, to balance performance, compatibility, resilience and long-term cost.
Modernisation without unnecessary disruption
Data centre transformation often involves legacy systems, complex dependencies and limited maintenance windows. CACI supports the journey from infrastructure assessment and architecture design through to deployment, migration and optimisation. Our structured approach prioritises operational continuity, helping organisations modernise critical infrastructure while managing implementation risk.
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FAQs
Answers to common questions about data centre solutions.
Data centre solutions are the technologies, infrastructure and services used to support the secure, reliable operation of enterprise IT environments. They can include network architecture, servers, storage, virtualisation, security, connectivity and infrastructure management.
Data centre network solutions focus specifically on the connectivity between computing resources, applications, storage systems and external networks. Modern architectures use high-performance switching, network virtualisation, segmentation and resilient connectivity to support business-critical workloads.
Colocation solutions provide businesses with space, power, cooling, and connectivity to host their own equipment in a professional facility. Managed data centre solutions go further by including full infrastructure management, monitoring, and support services.
Colocation offers control and flexibility, while managed services reduce in-house resource requirements and deliver a fully supported environment.
Data centre network infrastructure includes Ethernet switches, routers, firewalls, load balancers, fibre-optic connectivity and network management systems.
Modern environments may use leaf-spine switching, Layer 3 underlay networks, VXLAN overlays, BGP EVPN and high-speed 100GbE or 400GbE Ethernet. Depending on application requirements, storage connectivity may also involve Storage Area Networks (SAN) and Fibre Channel technologies.
The cost of data centre solutions in the UK depends on factors such as power usage, rack space, connectivity, resilience level, and whether services are colocation or fully managed. Location, compliance requirements, and support levels also influence pricing.
While costs vary, investing in professional data centre solutions typically lowers long-term risks, downtime, and operational expenses.
Leaf-spine architecture is a two-tier network design commonly used in modern data centres. Leaf switches connect servers, storage and other endpoints, while spine switches provide high-speed connectivity between leaf switches.
Unlike traditional three-tier network designs, leaf-spine architectures provide multiple equal-cost paths and support predictable network performance. They are particularly suited to environments with significant east-west traffic between applications, virtual machines and storage systems.
Data centre solutions enhance security by integrating advanced security measures such as firewalls, intrusion detection systems, and micro-segmentation. These measures protect against both internal and external threats, ensuring that data remains secure and compliant with regulatory standards.
By embedding security at every level, data centre solutions help businesses mitigate risks and safeguard their operations.
Virtual Extensible LAN (VXLAN) is a network overlay technology that extends Layer 2 connectivity across a Layer 3 IP network. Ethernet VPN (EVPN) provides a control plane, commonly using BGP, to distribute network reachability information.
Together, BGP EVPN and VXLAN enable scalable network segmentation, multi-tenancy and workload mobility across modern data centre fabrics. They are frequently used with leaf-spine architectures to support flexible, software-defined networking.
Data centre solutions enable secure connectivity between on-premises infrastructure, private cloud environments and public cloud platforms such as Microsoft Azure and Amazon Web Services (AWS).
Technologies including data centre interconnects, AWS Direct Connect, Azure ExpressRoute, routing controls and network segmentation can help organisations improve connectivity performance, maintain security and support hybrid workloads. The appropriate architecture depends on application requirements, latency, resilience and data governance needs.
When selecting a data centre solutions provider, organisations should assess technical expertise, architecture capabilities, security knowledge, implementation experience and support for their existing technology environment.
Important considerations include experience with enterprise switching, data centre interconnects, hybrid cloud connectivity, high availability and infrastructure modernisation. A suitable provider should be able to assess existing dependencies, recommend an appropriate architecture and support implementation with minimal disruption.