Network Infrastructure &
SD-WAN Architectures
A network that never fails. We design and deploy high-speed, redundant fiber-optic connections and deliver full-coverage next-generation Wi-Fi across your office spaces.
High-Speed Fiber & Redundant SD-WAN
Network interruptions are a thing of the past. With our dual fiber-optic connections and intelligent SD-WAN routers, network traffic is seamlessly rerouted within milliseconds during any outage, without you ever noticing.
Automatic switchover between fiber and 5G backup connections without dropping a single session.
Carrier-grade architecture engineered for 24/7 business-critical processes and data transfer.
Symmetrical fiber delivery from 1 Gbps up to 10 Gbps for lightning-fast cloud access.
Simultaneous use of multiple ISP lines to leverage maximum capacity and efficiency.
Full-Coverage Next-Gen Wi-Fi
No more dead zones or stuttering video calls in the office. Based on 3D RF heatmaps, we build a comprehensive Wi-Fi 6E/7 network with ultra-fast seamless roaming for hundreds of simultaneous devices.
Extreme speeds on the 6GHz band with 320MHz channel width and MLO (Multi-Link Operation).
Seamless handover between access points without interrupting Teams or VoIP calls.
Mathematically validated placement of access points for optimal signal coverage and minimal interference.
Enough capacity for busy meeting rooms, thousands of IoT sensors, and mobile workspaces.
Zero-Trust Security & VLAN Segmentation
Secure your physical office environment according to the strictest cybersecurity standards. We separate business-critical networks, guest Wi-Fi, and IP cameras/IoT via isolated VLANs and Next-Gen Firewalls (NGFW).
Isolation of sensitive departments (Finance, HR, Servers) to prevent lateral movement across the network.
Real-time inspection of encrypted network traffic for malware and unauthorized data transfer.
Secure captive portals for visitors with zero access to the internal office network.
IPsec/WireGuard VPN connections for remote workers and branch offices with multi-factor authentication.
Cloud Telemetry & QoS Traffic Control
Get 24/7 insight into the health and performance of your network. With intelligent Quality of Service (QoS), we prioritize business-critical traffic such as Microsoft Teams, VoIP, and Cloud ERP above less important data traffic.
Automatic prioritization of voice and video traffic for a stutter-free experience.
Central cloud management where bandwidth usage and network connectivity are immediately visible.
Automated alerts for impending bottlenecks before employees ever experience any hindrance.
Direct peering with Azure, AWS, and Microsoft 365 datacenters for minimal latency.
Every layer of your network, engineered.
Carrier-grade fiber, next-gen wireless, Zero-Trust segmentation and 24/7 telemetry, designed to work as one fabric, monitored end-to-end, and documented for auditors.
Dual fiber plus 5G backup. Active-active SD-WAN policies reroute in milliseconds, no session dropped.
3D heatmapped Wi-Fi 6E/7 with 802.11r roaming for hundreds of devices, phones and IoT sensors.
Micro-segmented VLANs, deep packet inspection and isolated guest networks. Lateral movement stops at the edge.
Cloud dashboards, QoS traffic shaping and proactive alerts available on request, before your users ever feel a slowdown.
Core, Distribution and Edge, how they fit together
A resilient network is not one device. It is three coordinated layers, the high-capacity core, the intelligent distribution fabric, and the always-on edge where every device and every room meets the network.
High-capacity core
The backbone. Multi-gigabit fiber links, carrier BGP peering and the SD-WAN policy engine that decides which packet goes where, in real time.
- Dual-homed fiber, active/active BGP
- Carrier-grade SD-WAN routing policy
- MPLS & direct cloud peering
- Sub-second failover across all WAN links
- Redundant power & hardware HA pairs
Intelligent distribution
The brain. Layer-3 switches, NGFW inspection, VLAN segmentation and QoS traffic shaping route the right traffic to the right place, safely.
- Layer-3 switching with VLAN routing
- Next-Gen Firewall deep packet inspection
- Micro-segmentation per department
- Application-aware QoS policy
- Isolated guest, IoT and camera networks
Always-on edge
The front door. Wi-Fi 7 access points, wired access switches, IoT onboarding and client roaming across every room, floor and building.
- Wi-Fi 7 APs with 6 GHz capacity
- 802.11r/k/v seamless roaming
- PoE access switches for cameras & phones
- IoT onboarding with device profiling
- Guest captive portal with isolation
One coordinated fabric · Core, distribution and edge monitored on request
Best-of-breed partners. One accountable team.
No single vendor delivers everything. We curate a network of carriers, hardware partners and cloud peering specialists, each selected for a specific strength, and coordinate them so the fabric is installed, tuned and supported end-to-end.
Tier-1 carriers & fiber operators
Direct delivery from premium fiber carriers, KPN, VodafoneZiggo and multi-national Tier-1 backbones, selected per location for latency and resiliency, not for price alone.
Enterprise hardware partners
Cisco, Aruba HPE, Juniper Mist and Ubiquiti, chosen per site for the right balance of capability, lifecycle cost and support depth, never locked to a single vendor.
Cloud peering & SD-WAN specialists
Direct private peering to Microsoft 365, Azure, AWS and Google Cloud. Latency tested, jitter profiled and documented so your collaboration tools feel local.
One coordinated deployment · Carrier + hardware + cloud · No vendor lock-in
What a 6-hour carrier outage teaches us
In 2023, a major European carrier suffered a nationwide fiber outage that took down fixed internet for thousands of businesses. It did not begin with a cyberattack. It began with a maintenance window that went wrong.
Thousands of companies offline. One carrier. Zero redundancy.
Businesses that depended on a single fiber provider lost connectivity for hours. E-mail stopped. VoIP dropped. Point-of-sale terminals couldn’t reach their payment processors. Every company that had dual-homed SD-WAN with a secondary carrier never even noticed.
- Maintenance window. A scheduled carrier maintenance went ahead during business hours, with a rollback path that didn’t work as expected.
- Single-provider failure. Businesses with only one fiber provider had no alternative path. Routers had nothing to fail over to.
- Six hours down. Fixed internet, VoIP and IP-VPN services were offline for thousands of customers across the country.
- Dual-homed survived. Companies with SD-WAN and a secondary line from a different carrier saw their traffic reroute within milliseconds and continued working.
- The bill afterwards. Lost revenue, missed SLAs, broken payment flows and emergency meetings. Costs far exceeded the yearly price difference of a redundant line.
The lesson is not about who to blame. It is about physics: a single physical path is a single point of failure. SD-WAN exists exactly for this reason.
Dual-carrier is non-negotiable
Two fibers from two different physical carriers. Not one carrier with two contracts, two independent paths that fail independently.
SD-WAN failover must be tested
Configuring failover is not the same as proving it. We schedule quarterly failover drills so you know the second path actually works.
5G as a third lifeline
A 5G backup router on a different physical path, cell tower, gives you a third independent route for critical traffic during a fiber outage.
Monitoring is the last mile
Even with failover in place, someone has to be paged. NOC alerting available on request, means your team hears about it from us before their users complain.
Design & audit, or design, build, manage
The same engineering team, two entry points. Start with a network audit and design report, or go straight to a full build program. Managing is optional and available on request, and reports are available on request or as an option inside the managing service, which is an extra service.
See exactly what your network can and cannot do
A structured audit and design report. Site survey, RF heatmap, WAN redundancy analysis and Zero-Trust segmentation plan, delivered as a buildable specification for any integrator.
- ✓Full site survey with Wi-Fi heatmap and RF analysis
- ✓WAN redundancy and failover design report
- ✓Zero-Trust segmentation and VLAN plan
- ✓Vendor-neutral hardware specification
From first survey to full commissioning
The full program. We survey, build, commission, then optionally keep the fabric under 24/7 telemetry with quarterly failover drills and QoS tuning as your business changes. Managing is available on request, and reports are provided on request or as an option inside the managing service, which is an extra service.
- ✓Full build by our engineers with peer-reviewed config
- ✓Dual-carrier SD-WAN with quarterly failover drills
- ✓NOC monitoring available on request, with documented response SLAs
- ✓QoS tuning and capacity planning as the business grows
More than fiber and Wi-Fi
The full stack around the network, from structured cabling to cloud peering and network automation, so your infrastructure is designed, installed and maintained as one coherent system.
Built for your business, not for a vendor
We select hardware, carriers and cloud peering per location, based on latency, capacity and lifecycle cost, never on reseller margin. Every site is documented, every change reviewed, every config version-controlled. The result is a network that behaves the same on day 1000 as it did on day one.
Copper, fiber and racks, done right
Cat 6A copper, OM4 fiber, tidy racks, labeled patch panels and full documentation. The physical layer is where resilient networks begin, and most outages end.
Infrastructure as code
Every switch, router and access point configured from templates and version-controlled playbooks. Changes are documented, reviewed and rollback-able.
Failover is not installed. It is proven.
We schedule and run quarterly failover drills on request, so if the primary path goes down for real, your team already knows exactly how the network behaves.
Every office, warehouse and branch on one fabric
Cloud-native SD-WAN links every site, head office, retail branch, warehouse and home office, into one unified fabric. Same policies everywhere, same telemetry everywhere, same escalation path everywhere. Managing is optional and available on request. Add a new site in days, not months.
5G backup on a different path
When fiber goes down, 5G takes over on a completely different physical path. Critical traffic keeps flowing while the carrier fixes the issue.
Pick the depth that fits your risk
The tiers below are examples to give you an idea. Within each one, scope, carriers and timelines are adapted to your sites, industry and existing infrastructure.
Essential connectivity
A focused audit and design for a single office. Wi-Fi survey, WAN redundancy analysis and a segment-plan you can build with any integrator.
- ScopeSingle office · Wi-Fi · WAN baseline
- TestingSite survey · RF heatmap · latency profile
- StandardsTIA-942 · Wi-Fi 6E ready
- ReportingDesign spec + vendor-neutral BOM, on request
Multi-site SD-WAN
Full design plus build. Dual-carrier SD-WAN, Wi-Fi 7 deployment, Zero-Trust segmentation and 24/7 telemetry on request across multiple offices and branches.
- ScopeMulti-site · SD-WAN · Wi-Fi 7 · Cloud
- TestingFull survey + failover drills
- StandardsISO 27001 · NIS2 network layer
- ReportingOn request, or managing option
Critical infrastructure
For manufacturing, logistics, finance and anything where downtime is measured in real money. Carrier diversity, 5G backup, redundant hardware and IR-level response SLAs.
- ScopeEverything in Multi-site + OT · ICS · supply chain
- TestingContinuous · quarterly full failover
- StandardsNIS2 · IEC 62443 · sector-specific
- ReportingOn request, board pack available
Examples only · Every scope is tailored · No vendor lock-in
Why the network pays for itself
A resilient network is not a cost centre. It removes a category of operational risk, keeps your people productive through carrier incidents, and directly enables growth: new sites, new staff, new cloud services.
One outage is more expensive than the whole fabric
The cost of a serious outage is not just lost hours. It is missed SLAs, frozen payment terminals, unfinished customer calls, emergency escalation and reputation. A redundant SD-WAN fabric costs a fraction of a full day of downtime, and it is predictable, budgetable and auditable.
- ✓Average outage cost dwarfs a full redundant fabric
- ✓Predictable monthly cost instead of unpredictable incident days
- ✓Cyber & business continuity insurers reward documented redundancy
- ✓Failover in milliseconds, not hours, with tested SD-WAN policy
The network is what lets the business scale
New office, new warehouse, new cloud application, fifty new hires, every one of these is a network question first. A well-architected fabric absorbs change without redesign, so IT is never the bottleneck when the business decides to move.
- ✓New sites added in days via cloud-managed SD-WAN
- ✓Wi-Fi capacity scales with hires and meeting rooms
- ✓Cloud migration accelerated by direct private peering
- ✓Hard numbers on uptime and capacity, not vendor claims
Example figures only · Actual impact depends on your sector, sites and existing infrastructure
From first survey to signed handover
A short, evidenced, engineering-first process. Every site documented, every failover tested.
Survey & design
On-site survey, Wi-Fi heatmap, WAN analysis and requirements workshop. Written design, vendor-neutral BOM, success criteria agreed before anything is ordered.
Build & commission
Carriers ordered, hardware installed, configs peer-reviewed, VLANs segmented, QoS tuned. Every change version-controlled and rollback-able.
Failover drills
We deliberately take down the primary path and prove the secondary takes over. Wi-Fi roaming tested under load, cameras and VoIP verified end-to-end.
Monitor & hand over
24/7 telemetry available on request, alert paths agreed, NOC retainer optional. You receive full as-built documentation, with access to live dashboards available on request.
Ready for an Indestructible Network?
From professional site surveys and fiber delivery to full Wi-Fi 7 deployment and SD-WAN configuration. Davidsons IT Agency designs your network infrastructure for maximum speed and zero downtime.
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