Network Review

Network issues rarely stay in one category. A review that treats them separately misses the real problem

Uneven branch performance, Microsoft 365 lagging outside head office, a looming carrier renewal — each could be treated separately, which is how networks become harder to operate. A Network Review is for when the symptoms cross SD-WAN, firewall, access, cloud and carriers, and the right next step is not yet clear.

  • Before the platform decision, not after
  • Cross-pillar by design, not a single-category review
  • Two to three weeks to a usable recommendation
What a Network Review covers
Connectivity and SD-WAN
Multi-site topology, branch performance and failover state
Firewall and secure access
FortiGate posture, VPN, ZTNA and SASE readiness
Carrier and cloud paths
Underlay, eSLA and Microsoft 365 and SaaS application paths
Visibility and ownership
Documentation, monitoring and who owns escalation
When the review is the right starting point

The situations where the next step is not yet clear.

A Network Review is not for situations where the work is already obvious. It is for the less tidy ones: several connected decisions, symptoms crossing more than one technical area, or a defensible view needed before committing to a platform, carrier or architecture change. Select a signal to see what is usually behind it.

The network grew site by site, and nobody has looked at it as one environment
Sites have been added through expansion, acquisition or project work. Each site was solved at the time. The environment now works, but nobody has reviewed how it operates as a whole, and the decisions ahead need that view before they can be made well.
A carrier renewal, MPLS contract or hardware refresh is coming and the decision feels premature
A quote has been received. The numbers may look reasonable. But it is not clear whether the existing architecture justifies the spend, whether the renewal locks in a design that no longer matches how the business operates, or whether a different next step would serve better.
Multiple network conversations are happening in parallel with no single architecture view
SD-WAN is being scoped. Firewall replacement is being discussed. SASE has been raised. Microsoft 365 performance is a complaint. A review consolidates these into one architectural picture so the decisions are sequenced, not separately negotiated.
Microsoft 365 performance varies across the environment and the cause is not obvious
Some sites are fine. Others are not. The issue could be routing, firewall inspection, underlay quality, DNS, VPN backhaul, carrier path or application steering. Without a review across the path, the team is guessing at which lever to pull.
A cyber insurance renewal or Essential Eight assessment is raising network questions
Insurers and assessors are asking about segmentation, secure access, firewall posture and logging. The questions cut across what would normally be separate conversations. A review provides a unified answer rather than multiple partial ones.
Internal IT carries network responsibility without specialist depth in the areas that matter most
The team can run the environment, but the upcoming decisions, SD-WAN architecture, secure access design, carrier strategy, FortiGate lifecycle, sit outside the band the team operates in day to day. The review provides specialist input without a long-running engagement.
The environment has been inherited and the documentation is thin
A new IT manager. A new CIO. A new MSP transition. The network works, but the institutional knowledge that ran it has moved on. The review establishes what is actually in place before the next decision is made on incomplete information.
What the review is, and what it is not

The review comes before the platform decision.

A Network Review is a structured assessment of the current environment. It is not a sales process for SD-WAN, Fortinet or SASE. The output may recommend one of those pathways. It may recommend none of them. It often recommends operating-model work, documentation, lifecycle planning or escalation ownership that the environment has needed for some time, but that no single platform vendor would have raised.

The review covers the surfaces where networking conversations usually concentrate, plus the operating layer that determines whether any of them are being run properly. Where the review identifies a clear next step, the buyer is routed there. Where it identifies operating-model work, that is what the recommendation says. Where no major change is needed yet, that is also what it says.

No platform decision should be made until the environment has been understood. The value is the defensible architectural view, not a forced next step.
Coverage

Seven surfaces, reviewed to the depth each one needs.

Some reviews go deeper in one area than others. A multi-site organisation may need most of the focus on connectivity; an organisation evaluating SASE may need most of the focus on identity and secure access. The bar shows where the review typically concentrates.

Multi-site connectivity and SD-WANWhether the network operates as one environment or a set of sites
Firewall, FortiGate and secure edgeThe control surface between the business, the internet and remote access
SASE, ZTNA and secure accessWhether the access model still matches how users actually work
Carrier, eSLA and underlayThe connectivity decisions that shape everything above them
Microsoft 365 and cloud application pathsWhere users meet the systems they depend on every day
Network visibility and documentationWhether anyone other than the person who built it can operate it
Operating ownership and escalationWho owns what when something changes or breaks

The operating layer, the last surface, is the one most likely to be the actual gap, and the one no platform purchase will fix.

How we run it

Review first. Recommend second. Sometimes the recommendation is to hold.

A defined two to three week engagement, shaped to the environment rather than run from a template.

1Scope against current pressures

A structured conversation about what triggered the review, upcoming renewals, performance complaints, insurance questions or project pressure, shaping which surfaces need the most attention.

2Review the environment as it operates

Site connectivity, firewall posture, secure access, Microsoft 365 paths, carrier contracts, underlay quality, monitoring, documentation and ownership, examined against current state.

3Identify the gaps and the sequence

Findings prioritised against business impact, upcoming pressure and dependency. The output distinguishes urgent from important, and lifecycle from immediate.

4Recommend the next step, including no major step

Where a platform is right, the review routes there. Where the right work is operating-model, documentation or lifecycle, it says so. Where no major change is needed yet, that is a valid finding.

Where the review points

One review, five honest outcomes.

A Network Review does not have to end in a platform recommendation. It resolves to whichever of these the environment actually supports, and "hold" is as valid as any pathway.

Network ReviewCross-pillar architectural view
Managed SD-WANMulti-site WAN modernisation and managed operation
Firewall ReviewFortiGate posture, policy, VPN and perimeter security
SASE and Zero Trust AccessIdentity-led secure access and VPN replacement
Operating-model workDocumentation, lifecycle planning and escalation ownership
Valid outcomeHold, no major change yetThe environment is operating reasonably; the work can wait
Why Inlight IT

A useful review does not need to end in a platform recommendation.

Most network reviews lead somewhere by design, to an SD-WAN proposal, a firewall replacement, a SASE platform recommendation. Inlight IT's Network Review does not. Where a platform decision is the right next step, it says so. Where the right work is documentation, lifecycle or operating-model improvement, it says that instead.

01

Engineer-led, not vendor-led

The review is performed by engineers who operate these environments daily across SD-WAN, FortiGate, SASE, ZTNA, carrier and Microsoft 365. The recommendation follows the environment, not a vendor relationship or a partnership commitment.

02

Cross-pillar by design

SD-WAN, firewall, secure access and carrier are reviewed together because they affect each other. A firewall decision shapes a future SASE design. A carrier renewal shapes SD-WAN viability. Reviewing them separately produces partial answers.

03

"No major change yet" is a valid finding

The strongest reviews sometimes conclude that the environment is operating reasonably and that the work the business has been considering is not yet the right priority. That is the recommendation the review will make where the environment supports it.

04

Australian network context, defined engagement

Sydney and Newcastle engineers working with Australian multi-site environments, carrier options, FortiGate estates and Microsoft 365-heavy operating models. Two to three weeks from scope to a practical recommendation, written to be usable by the team that operates the environment afterwards.

Common questions

Questions that come up before a Network Review starts.

What happens in a Network Review scoping conversation?

A structured conversation about the situations that triggered the question: upcoming renewals, performance issues, insurance questions, project pressure or general uncertainty. The outcome is a clearer view of which surfaces the review should focus on and what a practical engagement would look like.

How long does a Network Review take?

Typically two to three weeks from kickoff to recommendation. The duration depends on the size of the environment, the number of sites in scope and the access available to existing documentation and configuration. The output is a practical assessment with prioritised findings and a recommended next step.

What does the review actually produce?

A structured assessment covering the surfaces examined, with prioritised findings, a recommended next step and, where relevant, a routing to the appropriate pathway (Managed SD-WAN, Firewall Review or SASE and Zero Trust Access). The document is written to be usable by the IT team that will operate the environment afterwards, not as a sales artefact.

Is the review tied to a specific platform like Fortinet or Microsoft?

No. The review is engineer-led and environment-led. Where existing Fortinet, Cisco, Microsoft or other infrastructure is in place, the review accounts for that estate. The recommendation follows the environment, not a vendor relationship.

What if the review finds that no major change is needed?

That is a valid finding and one of the outcomes the review is designed to produce. Where the environment is operating reasonably and the upcoming decisions do not require a major platform move, the recommendation will say so. The review's value is the architectural view, not a forced next step.

Does the review help with cyber insurance or Essential Eight?

Yes, where the review surfaces network areas relevant to those questions: segmentation, secure access, firewall posture, logging, ZTNA readiness. It provides a network-side view that supports those broader assessments, though it does not replace a dedicated Essential Eight Assessment or insurance review.

Should we book a Network Review before SD-WAN, firewall or SASE work?

For organisations where the next step is not yet clear, yes. For organisations who have already self-identified the work as specifically SD-WAN, firewall or SASE, the dedicated landing is the cleaner starting point. The Network Review is for the situations those three do not yet describe.

Practical next step

Get a clear network view before the next platform, carrier or security decision.

Book a Network Review