Networking
Data center fabrics built for the traffic inside them.
Spine-leaf architectures, EVPN-VXLAN, high speed links, AI training fabrics, automation and monitoring for data centers and colocation suites.
Sound familiar
Where this usually starts.
Most traffic in a modern data center flows between servers rather than in and out of the building, and AI training pushes that east-west traffic to extremes. We design fabrics for it: spine-leaf topologies with predictable latency, EVPN-VXLAN for segmentation and workload mobility, links from 25 to 800 gigabits, and lossless fabrics where GPU clusters need them, all configured through automation and monitored continuously.
Scope
What is included.
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Fabric architecture
Spine-leaf designs sized for current and planned racks.
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EVPN-VXLAN
Overlay networks for segmentation, multi-tenancy and workload mobility.
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High speed links
Optics, cabling and port planning from 25 to 800 gigabits.
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AI fabrics
Lossless Ethernet or InfiniBand for training clusters.
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Automation
Configuration generated from templates and deployed through pipelines.
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Telemetry
Streaming telemetry, flow analysis and alerting.
Reference architecture
Networks designed from the traffic up.
Data center networking is the spine and leaf fabric in the networking architecture: the switching every server, storage system and GPU cluster in the facility connects to, and through which east-west traffic flows.
What this service delivers here
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Spine
The core of the fabric: every leaf connects to every spine.
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Leaf switches
Where servers join the fabric, each connected to every spine.
How it fits together
Spine and leaf, drawn.
Every leaf connects to every spine, so traffic between any two racks crosses exactly one spine, and the fabric grows by adding a leaf or a spine rather than by redesigning it.
Spine switches. Every leaf connects to every one.
Leaf switches. One at the top of each rack.
Racks. Any two racks are one spine apart.
Before you start
Decisions to settle early.
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Vendor operating system or open networking
Vendor systems bring integrated support; open networking such as SONiC brings choice of hardware. Skills and support needs decide.
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How much to oversubscribe
Non-blocking fabrics cost more; oversubscription saves money where traffic allows it. Training clusters usually need non-blocking.
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How far to automate
Full automation pays off at scale; smaller fabrics may start with templates and backups. Automation grows with trust.
Approach
How the work runs.
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Measure
Traffic flows and growth
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Design
Fabric, overlay and addressing
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Deploy
Automated configuration and testing
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Operate
Telemetry and lifecycle
Commercials
How it is bought.
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A fixed-fee assessment
We measure traffic between racks and services, review the current design and its configuration practice, and project growth. You receive the findings, a fabric outline and a fixed price.
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A fixed-price build
Fabric design, automation templates and pipeline, cabling and optics plan, deployment and acceptance testing, at a fixed price for the racks in scope.
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Running it afterwards
The fabric can then be operated by your team with runbooks and the automation, or by us monthly with telemetry and lifecycle management.
Start with the assessment.
Worked example
A three-tier network that could not keep up.
Say a hosting provider's data center still runs a three-tier network, traffic between racks bottlenecks at the aggregation layer, and adding a rack takes a weekend of manual configuration.
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Measure
We measure traffic flows between racks and services and project their growth, which shows that most traffic now runs east-west.
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Design
A spine-leaf fabric with EVPN-VXLAN replaces the old layers, with segmentation for each customer environment.
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Automate
Switch configurations are generated from templates and deployed through a pipeline, so a new rack is a reviewed change rather than a weekend.
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Migrate
Racks move to the new fabric in planned windows, with streaming telemetry showing the health of every link from the start.
At the end, traffic between racks flows at predictable latency, new racks join the fabric through automation, and customer environments are separated by design.
An illustration
Where it goes wrong
What we design out.
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Designing for north-south traffic
Modern workloads talk mostly to each other. The fabric is sized for traffic between servers.
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Configuration by hand
Manual changes drift switch by switch. Configuration comes from templates through a pipeline.
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Polling instead of streaming
Short bursts of loss vanish between polls. Streaming telemetry shows them as they happen.
Outcomes
What it changes.
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Predictable performance
Every server is the same number of hops from every other, so latency is consistent.
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Growth without redesign
Racks and capacity are added by repeating a pattern, not by rethinking the network.
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Changes that are safe
Automated, tested configuration removes the manual errors behind most network outages.
How you will know it is working
- Latency between racks is predictable under load.
- A new rack joins through a reviewed change, not a weekend.
- Every switch matches its template.
- Packet loss is seen when it happens.
You keep
What you have at the end.
Handover pack
five items
- Fabric design and addressing plan The spine-leaf topology, overlays and IP addressing, sized for the current racks and planned growth.
- Automation templates and pipeline Configuration generated from templates and deployed through a pipeline, so every switch matches the design.
- Cabling and optics schedule Every link with its optic, cable type and ports, matching the installed fabric.
- Acceptance test results Throughput, failover and convergence tests run on the fabric before it carries production traffic.
- Operations runbooks How the fabric is monitored, changed, upgraded and repaired, written for the team that runs it.
The team
Who you work with.
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Network architect
Designs the fabric, overlays and addressing.
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Network automation engineer
Builds templates, the source of truth and the deployment pipeline.
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Network engineers
Deploy, test and migrate racks onto the new fabric.
What we need from you
- Access to current switches and their configurations.
- Traffic data or permission to collect it.
- Rack plans and growth forecasts.
- Maintenance windows for migration.
When something slows down, you see where, and so do we.
Questions
Questions we get asked.
Do we need a spine-leaf design?
If traffic between servers is growing, or you plan more than a few racks, usually yes. It replaces bottlenecks between tiers with a flat, predictable fabric that scales by adding switches.
What is EVPN-VXLAN?
A standards-based way to build virtual networks over a routed fabric. It lets workloads move and environments stay segmented without stretching VLANs across the data center.
Can you design networks for GPU clusters?
Yes. Training clusters need lossless, low latency fabrics with careful congestion control, InfiniBand or Ethernet with RoCE, designed together with the compute and the storage.
Which switching platforms do you work with?
Arista, Cisco, Juniper, NVIDIA and open network operating systems such as SONiC, chosen to the requirement and to the skills of the team that will operate it.
What does non-blocking mean in a fabric?
That the fabric can carry traffic between any servers at the full speed of their links at the same time, because the capacity between leaf and spine matches the capacity to the servers. Many general fabrics are deliberately oversubscribed to save cost; training clusters usually need non-blocking designs.
Can automation be added to an existing network?
Yes. Existing configurations are captured into templates and a source of truth, differences between devices are reconciled, and changes then go through the pipeline. Automation can start with read-only checks and backups before it is trusted to make changes.
What is streaming telemetry?
Switches pushing detailed counters and state continuously, rather than being polled every few minutes. It shows congestion, errors and link problems as they happen, which matters most in fabrics where a brief burst of packet loss slows an entire workload.
Do you support SONiC and open networking?
Yes. SONiC runs on hardware from several vendors and is widely used in large and AI fabrics. Whether it suits you depends on your team's skills and support needs, and we compare it with vendor operating systems on those terms.
Ask about your situation
Answered from this site, with its sources.
Where it is bought
Data center networking, by sector and region.
Sectors that buy Networking
Often paired with
What usually comes next.
- Data Centers and Infrastructure
AI data centers and GPU clusters
GPU clusters planned, racked, networked and validated for AI. - Networking
Network security
Firewalls, segmentation and inspection that match your risk. - Data Centers and Infrastructure
Data center design and build
Server rooms and data halls designed around power and cooling.
CONTACT
Design the fabric for the traffic you will have.
Share the current topology and your growth plans. We will return a fabric design and a migration path.
- Senior-led
- Accountable
- Direct
- Fixed-price options
- Compliance-ready
- 24/7 capable
Prefer to talk it through? Call +92 (333) 32 11011
What happens next
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You pick the time
Tell us how many racks you run and what traffic worries you; we arrange the call around you.
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Thirty minutes, with an engineer
A network architect discusses the current fabric and where it bottlenecks.
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A written assessment
You receive a written fabric outline and a fixed price.