Enterprise engineering

Design the network around the services that need it.

When connectivity, segmentation or platform integration is limiting the business, Kritical assesses and changes the network around application requirements, so your team can resolve the constraint and operate it with confidence afterwards.

Discuss your network requirements

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Three situations bring teams to this page.

An intermittent problem nobody can pin down

It happens often enough to matter and rarely enough that nobody's caught it in the act.

Segmentation hasn't kept up with what the business runs

Flat access that made sense five years ago is now a real exposure.

A site, cloud or data-centre move needs the network redesigned first

Connectivity has to be right before anything else in the move can be sequenced.

What you get: a baseline built from configuration and observed behaviour.

Start with topology, addressing, routing, connectivity and the services affected. A useful baseline brings together configuration and observed behaviour, including intermittent problems a diagram can't explain. We scope troubleshooting or an assessment to identify the relevant constraints before proposing equipment changes or a redesign. Where visibility is limited, the assessment identifies what additional evidence is needed and how to collect it.

A design driven by access requirements, not habit.

Segmentation follows the relationships between users, applications, administration and external services. We define permitted traffic and the operational processes needed to maintain it. The design may involve campus, data-centre, branch or cloud interfaces, with routing, resilience, naming and monitoring considered together rather than as separate configuration tasks.

Data centre and campus network engineering.

Engineers who work on both the data centre core and the campus edge can trace a fault that lives in the join between them.

Cisco Nexus, ACI and Catalyst

Data centre switching and ACI fabrics alongside Catalyst campus cores, including where spanning tree has to be carried across the boundary.

F5 load balancing and WAF

Load balancers and web application firewalls for public-facing applications, including SSL handling and traffic rules.

DNS and certificate services

Name resolution and PKI treated as part of the network, because many mystery outages trace back to one of them.

Fault-finding on live networks

Loops, spanning-tree faults and intermittent drops traced to cause, not just rebooted away.

Why Kritical for network change.

A network change needs a plan for management access as well as production traffic.

Management access

Plan management access as well as production traffic.

Maintenance window

Agree sequencing and the maintenance window before the change.

Configuration backups

Retain the configuration needed to support recovery.

Rollback conditions

Define the conditions for rollback before cutover.

How it's priced, and what handover looks like.

A scoped assessment or change is quoted in writing before work starts. Acceptance verifies agreed application flows, administrative access and failure scenarios within the project scope. Handover can include topology and addressing records, configuration changes, test evidence and operating instructions, with capacity, monitoring and support responsibilities made explicit.

First call

We confirm the affected services, timing and available telemetry, and whether this needs observation over a period.

Get a quote

Send the systems and constraints involved and we quote the work, not just a licence.

Explore the relevant technologies.

Use these guides to see which technologies can help with the job in front of you.

SolarWinds

Monitoring and observability shaped around the systems your team runs and the alerts they need to act on.

Questions before you enquire

Can you investigate an intermittent network problem?

Yes. A scoped investigation starts with the affected services, timing, recent changes and available telemetry. Some issues require observation over an agreed period.

Can you work with our carrier or existing provider?

Yes. We define the technical interfaces and coordinate dependencies while each supplier retains its agreed delivery and support obligations.

Will a network project require downtime?

That depends on the design and change. The plan identifies expected interruptions, constraints and recovery options before implementation is approved.

Can you segment our network without breaking things that already work?

Yes, but it requires mapping what depends on today's flat access first. We test the design against real traffic before it's enforced.

Do you handle both office and data-centre networking?

Yes. Campus, branch, data-centre and cloud interfaces are considered together where they affect the same services.

Can you assess our network before we commit to a hardware refresh?

Yes. An assessment establishes the actual traffic patterns, failure modes and dependencies first, so the refresh is sized against a real requirement rather than a vendor's default recommendation.

What if the network problem is a supplier's circuit, not our equipment?

The assessment identifies where the fault domain sits, including third-party circuits, and coordinates the evidence needed to hold the responsible supplier to their own service commitment.

Do you work with SD-WAN and multi-site environments?

Yes. Multi-site connectivity, routing and failover are assessed as part of the same design, with each site's dependencies and recovery path made explicit.

Let’s define the next step.

Tell us what you want to achieve, what you have today and when it matters.