Layer 1 to Layer 3.
Designed.
Deployed. Managed.
AIT builds enterprise LAN and WAN infrastructure — from structured cabling through managed switching, routing, and next-generation firewall policy. Every network designed, documented, secured, and supported with remote monitoring.
Watch a complete network infrastructure deployment.
From 3-tier architecture design to VLAN configuration and firewall policy — see how AIT builds a fully documented, enterprise-grade LAN for a mid-size commercial facility.
From assessment to monitored production.
A structured five-step process that turns network chaos into a documented, scalable, production infrastructure.
Current-State Audit
Discover all existing switches, routers, cabling, and firewall rules. Identify bandwidth bottlenecks, single points of failure, and growth constraints.
Network Design
Three-tier or collapsed-core architecture with VLAN strategy, IP addressing plan, QoS policy, redundancy design, and documented topology.
Proposal & BOM
Fixed-price bill of materials with hardware specs, licensing costs, cable plant requirements, and timeline. No hidden fees.
Deployment & Configuration
Rack, cable, and configure all hardware — VLANs, routing protocols, firewall rules, QoS, and VPN — then tested before cutover.
Monitoring & Handoff
SNMP monitoring, alerting thresholds, and configuration backups set up. Full topology diagrams, IP plans, and config exports delivered.
Hardware Ecosystem
AIT is a certified installer for enterprise-grade switching, routing, and security platforms — the equipment your IT team and MSP can manage, monitor, and scale.
Core / Distribution Switches
High-density 10G or 40G core switches with L3 routing, OSPF/BGP, HSRP redundancy, and StackWise/VSS stacking for zero-downtime failover. The backbone of your LAN.
Access Layer PoE+ Switches
24 and 48-port gigabit PoE+ access switches with 10G fiber uplinks. Powers APs, cameras, phones, and access control readers. 802.1X port security, DHCP snooping, and dynamic ARP inspection.
Next-Generation Firewall
Stateful inspection, IPS/IDS, SSL decryption, application-aware policy, and VPN gateway — hardware or cloud-delivered. Unified threat management for users both on-site and remote.
WAN / SD-WAN Edge Router
Multi-WAN failover with active/active load balancing across fiber, cable broadband, and LTE. SD-WAN path selection optimizes latency and packet loss for SaaS and cloud applications.
Mission Critical PoE Switch
PoE switch with integrated battery backup — keeps cameras, APs, and access control devices powered during outages. No separate UPS required. Ideal for always-on security infrastructure.
Network Monitoring / NMS
Cloud-based or on-premise NMS with SNMP polling, syslog, NetFlow traffic analysis, and automated alerting. Dashboard visibility into uptime, bandwidth, and switch port status.
Enterprise-grade. Right out of the rack.
Every AIT network deployment is configured with production-ready security, routing, and monitoring — not just plugged in and left to default settings.
VLAN Segmentation
Logical network segmentation for data, voice, wireless, camera, and guest traffic. Per-VLAN ACL policies and inter-VLAN routing designed for your security and compliance requirements.
Firewall Policy & IPS/IDS
Application-aware firewall rules with IPS/IDS threat signatures. SSL inspection for encrypted traffic. Per-zone policies for trusted, untrusted, and DMZ segments.
QoS & Traffic Prioritization
Quality of Service policies prioritize VoIP, video conferencing, and business-critical applications over bulk transfers. DSCP marking, policing, and queuing configured end-to-end.
802.1X Port Security
Port-based network access control — only authenticated devices get on the network. Supports MAB for legacy devices. Works with your RADIUS server or Active Directory.
Site-to-Site VPN
IPsec or SSL VPN between multiple office locations, data centers, and cloud providers. Full mesh or hub-and-spoke topology — all traffic encrypted in transit.
Remote Monitoring (24/7)
SNMP polling, syslog aggregation, and NetFlow analysis with automated alerting on link down, high CPU, and threshold breaches. Dashboard access for your IT team or MSP.
Zero-trust. Policy-driven. Documented.
Every AIT network is deployed with a documented security baseline — not default passwords and open ports. We design for compliance, not just connectivity.
Default Credential Hardening
Every device is configured with unique admin credentials, SSH key auth, HTTPS management, and SNMP v3. Default community strings, Telnet, and HTTP management are disabled before the network goes live.
Documented VLAN & ACL Policy
Every VLAN, access list, firewall rule, and NAT policy is documented with intent — not just config dumps. Your IT team can read and understand the policy without reverse-engineering the device.
Configuration Backup & Version Control
Device configurations are backed up before and after every change. Config files are stored in version control with change logs — so you can roll back any change in minutes.
Topology & IP Address Documentation
Complete network topology diagram, IP address management (IPAM) spreadsheet, VLAN table, and routing design doc — delivered at project close and updated with any future changes AIT makes.
Right-sized for every network.
From a single-site SMB to a multi-site enterprise — AIT designs and deploys networks that scale with your business.
Small Business
Mid-Size Office
Enterprise / Multi-Site
Refresh / Upgrade
Everything you need to know.
An unmanaged switch is plug-and-play — all ports on the same network, no configuration options. A managed switch lets you create VLANs, set port security, prioritize traffic (QoS), monitor port status, and remotely access the device for troubleshooting. For any business environment with more than a handful of users or mixed device types (cameras, phones, computers), a managed switch is essential.
Yes. Consumer or ISP-provided routers have minimal security capabilities — basic NAT at best, no IPS/IDS, no application awareness, and no policy management. A next-generation firewall gives you stateful inspection, intrusion prevention, application control, SSL decryption, and VPN — essential for any business handling sensitive data.
VLANs (Virtual Local Area Networks) logically separate traffic on the same physical infrastructure. Separating guest Wi-Fi, cameras, VoIP, and corporate computers into different VLANs means a compromised guest device can’t reach your file server. Each VLAN has its own security policy enforced by the firewall — so you control what can communicate with what.
Yes. AIT can set up network monitoring with SNMP polling, syslog collection, and NetFlow analysis — either as a standalone NMS you manage yourself, or as part of a managed service agreement where we monitor and respond to alerts. Both options include alerting on link failure, high utilization, and device unreachability.
Absolutely — this is actually our preferred approach. AIT handles the full stack: structured cabling (Cat6A), fiber backbone between IDFs, PoE switches, core routing, firewall, and wireless. Having one contractor responsible for layer 1 through layer 3 eliminates finger-pointing and ensures the infrastructure works as a system.
Contact us for a free network assessment. We’ll review your current infrastructure, identify risks and bottlenecks, and deliver a written proposal with fixed pricing and a clear scope of work — typically within 48 hours of the site visit.
AIT designs and deploys enterprise network infrastructure across Chicago Metro, IL and IN.
From layer-1 cabling to layer-3 routing — designed, documented, and monitored. Get a free network assessment and fixed-price proposal.