Network audit and documentation (HLD and LLD) for UAE businesses
A network audit tells you what is actually running, what is at risk and what to fix first. I review your routers, switches, firewalls and Wi-Fi, then deliver HLD and LLD documents, topology diagrams and a prioritised fix list. I have written HLDs and LLDs for enterprise SD-WAN rollouts across the GCC.
Who this is for
- Companies whose previous IT person or provider left no documentation
- Businesses planning an office move, expansion or SD-WAN migration
- Teams preparing for a security or compliance audit
- New IT managers who have inherited a network they did not build
Problems it solves
- Nobody can draw the network from memory, and no diagram exists
- Configs have drifted between sites and devices over the years
- Single points of failure nobody has noticed yet
- Old firmware and a flat network with no segmentation
What you get
- An inventory of network devices, links and firmware versions
- Topology diagrams, physical and logical
- A high-level design (HLD) describing how the network works
- A low-level design (LLD): IP plan, VLANs, routing and firewall rules
- A findings list ranked by risk, with a recommended fix for each
- Config backups of every device reviewed
How an engagement runs
- 1
Assess
Review what is running today: configs, links, sites and the problems you see.
- 2
Design
An HLD and LLD you sign off before anything changes.
- 3
Implement
Changes in planned windows, each with a rollback plan.
- 4
Hand over
Documentation, diagrams and a walkthrough for your team.
Relevant experience
- Wrote HLD and LLD documents and topology diagrams for enterprise SD-WAN customers
- Analysed existing firewall and router configs before migrating sites to SD-WAN
- Ran security audits, ACL and QoS reviews and Wireshark troubleshooting in earlier roles
Certifications
- Aruba Accredited SD-WAN Expert · Earned 2024
- ET80 – Sophos Firewall v19.5 Engineer · Earned Jun 2023
Related projects
- Network · 2024–26 SD-WAN rollout across 300+ retail sites HPE Aruba EdgeConnect SD-WAN for a regional retail group, rolled out to 300+ sites across the GCC: EdgeHA, MPLS + internet underlays, Business Intent Overlays and BGP/OSPF routing, with legacy firewall/router sites migrated to the new fabric. (Sanitized: client details withheld.)
- Network · 2024–26 Wi-Fi audit for a school in Sharjah Site survey and audit of an Aruba Instant On network at a school in Sharjah with NetAlly AirMapper heatmaps and air-quality analysis, ending in redesign recommendations.
Frequently asked questions
What is the difference between an HLD and an LLD?
A high-level design (HLD) explains how the network is built and why: sites, links, security zones and traffic flows. A low-level design (LLD) holds the detail an engineer needs to configure it: IP addressing, VLANs, routing, firewall rules and device settings.
What access do you need?
Read-only access to your network devices, or config exports from them, plus a walk-through of the sites. I do not change anything during the audit unless you ask me to.
Which vendors can you audit?
I work across Cisco-style routing and switching, Fortinet and Sophos firewalls, HPE Aruba EdgeConnect and Aruba Instant On Wi-Fi. If most of your network is on another platform, I will tell you before we start.
Do you work outside Dubai?
Yes. I work on-site anywhere in the UAE and remotely across the GCC, including Saudi Arabia, Qatar, Kuwait, Bahrain and Oman. My largest SD-WAN rollouts spanned all of those countries plus Jordan.
Ways to work together
- One-off assessment. An audit, survey or review with a written report and a prioritised plan.
- Project. Design and implementation with a fixed scope, dates and handover.
- Remote support retainer. Ongoing help for changes, troubleshooting and questions.
- On-site in the UAE. Surveys, cutovers and installs at your sites across the Emirates.
- Remote across the GCC. Design, configuration and support for sites in KSA, Qatar, Kuwait, Bahrain and Oman.
Page updated November 2026.
Tell me about your project
Book a free 30-minute call on WhatsApp, or send the details and I will reply with next steps.
WhatsApp +971 54 782 9816 · Based in Dubai, working across the UAE and GCC