• Maximum availability: Redundant spine-leaf architectures and sub-second failover secure 99.999% uptime for mission-critical workloads.
• Radical automation: Configuration, compliance, and troubleshooting run through centralised platforms. Manual errors are eliminated by design.
• Scalability without redesign: From 25G access to 400G core capacity expansions happen without tearing down and rebuilding the architecture.

Modern data centres face a fundamental shift in both technical and regulatory requirements. The rapid growth of virtualisation and dense container clusters has moved the primary network load to intense East-West server-to-server communication, which legacy multi-generation infrastructures were never designed to handle. At the same time, compliance frameworks like NIS2 and ISO 27001 demand strict network segmentation, auditable access controls, and comprehensive traffic logging. Without a modern fabric design, executing these security mandates on legacy switching layers creates immense architectural complexity and artificial latency loops.

This friction directly impacts daily operations. Engineering teams routinely spend hours on manual port configurations, static VLAN updates, and reactive troubleshooting because unified fabric visibility is completely absent. When an outage occurs or a security anomaly needs to be investigated for compliance reporting, the lack of real-time streaming telemetry turns root-cause analysis into a tedious guessing game across disconnected switch operating systems. Upgrading your core switching architecture is not just a performance adjustment, it is the foundation for an auditable, resilient enterprise network.

Organisations that migrate to a modern spine-leaf architecture on Arista and ALE see the operational picture change quickly. Change processes that previously took hours run as versioned pipelines in minutes. Mean time to resolution drops because streaming telemetry and topology-aware alerting surface problems before they become outages. Eliminating broadcast domain problems through EVPN/VXLAN removes a persistent source of unplanned downtime.

Strategically, the architecture opens paths that were previously out of reach: AI and GPU cluster connectivity with low latency, direct cloud on-ramps via DCI interfaces, and consistent zero-trust microsegmentation at the network layer. None of this requires an architectural restart. It builds on the spine-leaf foundation already in place. evoila covers the full stack, from initial datacenter design through to the AI and application layer, with engineers who have built these environments in production across 60+ projects.

BGP EVPN / VXLAN: the modern datacenter overlay

BGP EVPN with a VXLAN data plane is the industry standard for scalable datacenter overlays and is natively supported by Arista across all platforms. EVPN solves the core problems of classical datacenter networks: MAC and IP addresses are distributed as BGP routes rather than flooded, workload mobility between leaf switches requires no VLAN reconfiguration, and multi-tenancy is achieved through VRF-based segmentation without hardware overlays. Arista supports symmetric IRB for optimal inter-tenant routing and distributed anycast gateways for latency-minimised default-gateway access without centralised bottlenecks. This ist the perfect base for modern VMware by broadcom VCF datacenter designs.

ALE OmniSwitch: converged datacenter fabric

The Alcatel-Lucent Enterprise OmniSwitch series is purpose-built for converged datacenter environments where LAN, WLAN backbone, UC, and storage traffic need to be consolidated onto a shared hardware platform. Integrated fabric mode enables the construction of up to 512 ports in a single logical chassis without external fabric modules. OmniVista 2500 NMS delivers automated compliance reporting, zero-touch provisioning for new switching nodes, and an integrated network map spanning physical and logical topologies, all from a single management interface.

Arista

Arista datacenter switching delivers 400G fabric performance, sub-second failover, and full NetOps automation on a single EOS operating system with a single API. Engineered for the workloads that define modern datacenters: AI, hybrid cloud, and high-density virtualisation.

Alcatel-Lucent Enterprise

ALE OmniSwitch delivers a converged switching fabric for environments where LAN, WLAN, unified communications, and storage share the same infrastructure. A single logical chassis, centralised management, and flexible integration across the full datacenter and campus footprint.