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Enterprise Networking & Cybersecurity Infrastructure

Comprehensive engineering, modernization, and 24/7 management of enterprise corporate data networks (CDN) across any topological scale. The Noxet network engineering team builds resilient, high-bandwidth, and securely segmented network fabrics for enterprise data centers, branch office meshes, and modern corporate headquarters.

We architect network topologies strictly in alignment with Zero Trust security principles, eliminating lateral movement vectors while guaranteeing maximum throughput and minimal latency for mission-critical applications.

Technical Competencies & Solutions

  • Data Center & Campus Network Switching (L2/L3):

    • High-availability topology design: Data center Spine-Leaf architecture, non-blocking fabrics, link aggregation (LACP, MLAG, vPC), and loop prevention protocols (RSTP, MSTP).
    • Dynamic routing engineering: Multi-homed BGP routing (carrier redundancy, Autonomous System management) and multi-area OSPF for high-speed internal inter-branch routing.
    • Quality of Service (QoS / CoS): Hardware buffer tuning and traffic prioritization for latency-sensitive traffic streams (VoIP, video conferencing, RDP / ERP terminal sessions).
    • Enterprise hardware lines: Cisco Catalyst / Nexus, MikroTik RouterOS, Eltex, Arista, Huawei.

  • Next-Generation Firewalls (NGFW) & Perimeter Security:

    • Deployment and tuning of clustered NGFW platforms (Fortinet FortiGate, Check Point, Cisco Firepower, UserGate).
    • Deep Packet Inspection (DPI), wire-speed SSL/TLS inspection, signature-based behavioral analysis, and automated Intrusion Prevention Systems (IPS/IDS).
    • Network segmentation and micro-segmentation: rigorous isolation of high-security enclaves (financial departments, databases, management planes) from standard employee LANs and guest segments.
    • Network Access Control (NAC / 802.1X): Dynamic port VLAN assignment validated against endpoint security compliance posture and employee directory accounts in Active Directory / FreeIPA.

  • Multi-Site Interconnection & Secure Remote Access (VPN & SD-WAN):

    • High-throughput site-to-site tunnels: IPsec IKEv2 (hardware AES-GCM acceleration), WireGuard, and dynamic DMVPN overlays.
    • Carrier uplink failover: sub-second automated traffic steering upon primary ISP link degradation or physical fiber cuts.
    • Client-to-Site enterprise remote access: multi-factor authentication (2FA / MFA: TOTP, Push), endpoint health posture verification, and granular split-tunneling policies.

  • Enterprise Wireless Infrastructure (Wi-Fi 6 / 6E):

    • Professional RF site survey assessments, heat-map coverage simulations, and client density modeling.
    • Centralized controller management: seamless fast roaming (802.11r/k/v) preventing packet drops during VoIP calls and roaming sessions.
    • Secure guest access: Captive Portal integration with automated SMS/phone verification complying with regional regulatory standards.

  • Corporate VoIP & Unified Communications:

    • Resilient IP telephony clusters built on Cisco Unified Communications Manager (CUCM) and Asterisk (FreePBX / Issabel).
    • SIP trunk failover, intelligent call distribution, IVR menus, and CRM integration.
    • VoIP threat mitigation: SIP firewalls, brute-force blocking (Fail2ban), and unauthorized international call lockdown.

Standard High-Availability Branch Architecture

       [Primary Telecom Carrier]               [Secondary Telecom Carrier]
                 |                                      |
         +-------v--------------------------------------v-------+
         |        Clustered NGFW Appliances (Active-Passive HA)  |
         +-------+------------------+-------------------+-------+
                 |                  |                   |
         +-------v-------+  +-------v-------+   +-------v-------+
         | DMZ Subnet    |  | Corporate LAN |   | Datacenter LAN|
         | - VPN Gateway |  | - 802.1X / NAC|   | - Databases   |
         | - WAF / Proxy |  | - Wi-Fi 6 APs |   | - Backup Host |
         +---------------+  +---------------+   +---------------+

Engineering Commitments

  1. High Availability by Default: Dual-power, dual-uplink, and hardware cluster redundancy across all critical network choke points.
  2. Deterministic Security: Zero-Trust segmentation preventing unauthorized lateral movement across network boundaries.
  3. Comprehensive As-Built Documentation: Delivery of full L2/L3 topology diagrams, cable schedules, and automated configuration backup pipelines.
  4. 24/7 Telemetry & Operations: Proactive link utilization monitoring (SNMP / NetFlow / sFlow), jitter, and packet loss telemetry backed by SLA response guarantees.
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