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Network infrastructure · Switching

LAN & Switching — the reliable foundation of your infrastructure

We design and deploy LAN networks for companies of every size — from office networks to extensive campus and industrial environments. The right switching architecture is the foundation of efficient and secure infrastructure.

Ask about a LAN project → Service scope
Architecture3-tier design
VLANnetwork segmentation
RedundancySTP / LACP

What we design

LAN & Switching service scope

We design network architectures matched to the size and specifics of the organization — from simple office networks to complex multi-site environments.

Network architecture design

Requirements analysis, logical and physical network design. Topology selection (flat, 2-tier, 3-tier), IP addressing scheme, VLAN segmentation, and routing policies between segments.

Switch selection and configuration

Selection of core, distribution, and access switches matched to performance and budget requirements. Configuration of VLAN, trunk, spanning tree, LACP, and QoS.

Redundancy and high availability

Designing fault-tolerant networks — redundant uplinks, EtherChannel/LAG, rapid spanning tree, VRRP/HSRP. Failover in seconds instead of minutes.

LAN network security

Port security, Dynamic ARP Inspection, DHCP snooping, 802.1X on access ports. Segment isolation and protection against internal attacks.

Existing network audit

Device inventory, configuration analysis, identification of weak points. As-built documentation and optimization recommendations.

Documentation and management

Complete as-built documentation: logical and physical diagrams, VLAN inventory, IP addressing. Monitoring and management configuration.

Certified partners

Technology partners

Extreme Networks

Extreme Networks

ExtremeSwitching series switches — high-performance, scalable, managed via ExtremeCloud IQ.

Cisco

Cisco

Catalyst and Meraki — the most widely deployed enterprise switches in the world. Cisco DNA Center.

Aruba Networks

Aruba Networks

Aruba CX switches — managed via Aruba Central with full network visibility.

A network without documentation is a network without a future

Half of network outages come from configuration errors — not from hardware.

A network built without design and documentation is hard to maintain and prone to errors. Every change becomes a risk. We deliver networks with complete as-built documentation.

Ask about a LAN project →

FAQ

LAN network questions

An office network design for 50–200 users typically takes 1–3 weeks — from requirements analysis to as-built documentation. The physical deployment itself is 2–5 days. We minimize disruption by scheduling work outside office hours.
Yes — we plan modernizations in stages, replacing devices segment by segment. Critical links are switched during maintenance windows (evening, weekend). We use redundancy where possible so every stage has a fallback path.
A flat network has one switching layer — simple for small offices, but hard to scale and manage. A 3-tier architecture (core–distribution–access) provides better performance, segmentation, and resilience — recommended from ~100 users or multiple locations.
For LAN monitoring we use SNMP-based NMS (e.g. Zabbix, PRTG) or vendor-native platforms (ExtremeCloud IQ, Cisco DNA Center, Aruba Central). Each platform provides real-time visibility into port status, bandwidth utilization, and failure alerts.

Contact

Ask about a LAN project

Describe the network scale, number of locations, and users. We'll propose an architecture and quote the deployment.

ul. Bukowska 177, 60-196 Poznań
kontakt@vol.com.pl
Free consultation — no commitment
Reply within 24 business hours