Connect. Secure. Manage.
Enterprise Network Design
Develop a Cisco network architecture for multiple departments and sites, with defined routing, segmentation, resilience and management boundaries.
Devices supported
across the UK
Client locations
supported
Traffic handled
at peak time
Average
response time
Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.
Enterprise network design gives multiple sites and teams a consistent network plan. We bring Cisco routing, switching, security and management into one design around the services you need. Meraki can be included where its features and operating model fit. The aim is a network that can grow while staying clear to the people who support it.
The challenge is not simply connecting more devices. It is keeping the network understandable as the organisation grows, changes suppliers or introduces new services. A good enterprise design provides repeatable patterns without pretending that every site has identical needs.
A clear requirement
Turn the business need into a practical network scope with visible dependencies.
A controlled delivery
Plan implementation, testing and rollback before production changes begin.
A supportable result
Leave useful records, ownership and escalation routes behind.
Define the architecture around services and boundaries
We establish where apps run, which users and systems need access and which organisational boundaries matter. This creates a basis for routing domains, segmentation and the connections between offices, data centres, cloud setups and external organisations.
Existing infrastructure is part of the starting point. An enterprise design often needs to accommodate acquisitions, legacy apps and limits on live changes that cannot be removed in one project. Those dependencies should be visible in the target architecture and the migration approach.
The design also identifies the scale that matters. User count, site count, app traffic, route scale and the number of operational exceptions can each influence the architecture. A network should not be sized solely from its most visible metric.
Standards & partnerships
Confidence in the team behind your network.
Cisco Partner
Cisco Meraki
Cyber Essentials
Cyber Essentials PlusMCI Network Services is operated by Proxar Ltd. Certifications apply to the certified legal entity and the scope of its certificates. View accreditation information
Standardise where consistency has value
Common patterns can make rollout and support more predictable. We consider reusable approaches for branch network access, addressing, admin access, monitoring and setup standards. A new site should not require every design decision to be made again.
However, standardisation needs an exception process. A site with specialist market-data connections or a demanding local app may legitimately require a different pattern. Recording the reason and the operational consequence is better than hiding the difference in a setup file.
A high-level design captures these patterns and their relationship to the overall architecture. Detailed designs then define how they are implemented on the relevant Cisco and Meraki platforms.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Control failure domains and recovery behaviour
An enterprise network should make it possible to understand the reach of a fault or a change. We examine where Layer 2 domains extend, where routing boundaries sit and which services depend on shared components. The aim is to avoid unnecessary coupling between otherwise independent parts of the estate.
Resilience planning considers more than the normal forwarding path. We assess the service expected after a device, circuit or site becomes unavailable, including the capacity and policy on the remaining path. Management access and shared services need the same attention as user traffic.
For setups that need deeper review, network resilience design develops the failure scenarios and the corresponding engineering decisions. The enterprise architecture provides the context in which those decisions make sense.
Different environments. The same care.
Built around the work
your network supports.
Finance, banking and the wider private sector. We start with the systems and people that depend on your connections.
Finance & banking
Market-data paths, routing and provider coordination on clients’ behalf.
Financial-market services ↗Offices & multi-site teams
Reliable access between people, workplaces and business applications.
Office network design ↗Data centres & cloud
Network boundaries, workload connections and operational ownership.
Data centre networks ↗Integrate security without losing operational clarity
Segmentation should express a business or security need. We check which systems need to communicate, where policy is enforced and how authorised exceptions are requested and reviewed. An architecture with many security zones can still be difficult to control if nobody understands the intended relationships between them.
Identity, management access and logging are considered alongside traffic policy. The design should help engineers investigate an issue without requiring unnecessarily broad access. It should also make it clear which team owns each control and which evidence will be available during an incident.
Network design can support an organisation’s security aims. But it does not by itself establish compliance with a standard or regulation. The scope and evidence required for formal assurance remain separate decisions.
Make the operating model part of the design
A technically capable architecture must be supportable by the people who will run it. We consider internal skills, supplier boundaries, change procedures and the management systems already in use. Introducing another platform should have a clear operational purpose.
The design can support central engineering with local site assistance, a shared arrangement with MCI or another defined model. What matters is that access, escalation and responsibility are not left ambiguous. Network operations can develop the ongoing service around the accepted architecture.
Migration is planned in stages where appropriate. The sequence needs to preserve required app paths while moving the estate towards the target design, with interim states documented rather than treated as accidental exceptions.
Enterprise design questions
Does an enterprise architecture require a fabric network?
No. The architecture should follow the needs. Fabric technologies may be appropriate for some setups, while a well-structured conventional design may be more suitable elsewhere. We assess the operational and technical trade-offs instead of using complexity as a measure of quality.
Can Cisco and Meraki coexist in one estate?
Yes, where their roles and connections are deliberately designed. We establish management boundaries, routing, security policy and support duties. Coexistence does not mean assuming that every feature behaves identically across both platforms.
How do you handle acquired businesses?
We identify addressing, app and security dependencies before integrating the networks. A controlled intermediate design may be needed while longer-term decisions are made. The aim is to enable required business activity without immediately merging every trust boundary.
Where should the discussion begin?
Bring the business structure, major sites and the changes driving the project. Discuss enterprise network design to establish the scope and evidence needed before detailed platform decisions are made.
Talk to a specialist
What does your network need next?
Tell us what you are planning, changing or trying to improve. We will help define a practical next step and the engineering scope.
+44 203 196 6566Choose option 1
sales@proxar.co.ukUK-wide service.
Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.
Existing customers should use their agreed support and escalation channels. This form is for service enquiries, not a monitored emergency ticket.
Tell us what you need.
A short outline is enough. Please do not include passwords or sensitive network details.
Thank you. Your enquiry has been submitted.
Please check your name, email and message, then try again.
Your form session expired. Please try again.
Please wait a minute before sending another enquiry.
We could not submit your enquiry. Please call or email us instead.