Connect. Secure. Manage.
Private Cloud Network Architecture
Design Cisco private cloud connectivity around compute, storage, management and tenant requirements, documenting network boundaries and resilience.
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.
Private cloud network architecture sets out how the platform’s systems will connect and stay separate where needed. We plan physical links, virtual traffic paths and tenant access with the platform owners. Recovery needs are included from the start. The result gives engineers a design they can build, test and support with clear roles.
Workload-led design
Start with application, compute and storage dependencies rather than the switch model.
Clear failure domains
Understand which links, devices and sites can fail together.
Operational clarity
Make fabrics, external routing and management responsibilities supportable.
Establish the architecture’s boundaries
We find the sites, racks, clusters and external connections included in the project. The needs record distinguishes production workloads, management, storage, backup and migration traffic. It also states which current components must remain and which may be changed, avoiding a design that assumes freedom the project does not have.
The architecture should answer business questions and technical ones. We establish expected growth, acceptable interruption, operational staffing and the constraints of the maintenance window. These inputs influence the balance between simplicity, capacity and fault isolation more usefully than selecting a fashionable fabric before understanding the setup.
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
Choose the forwarding model deliberately
Traditional routed designs, Cisco ACI and VXLAN EVPN fabrics can each serve different needs. We assess the supported options against workload placement, scale, segmentation and the team’s ability to operate them. Introducing an overlay should solve an identified problem rather than merely increase the number of technologies in the design.
The decision record explains where gateways live, how routes are exchanged and what happens when workloads move. It also identifies the control-plane dependencies of the chosen model. A customer should understand which services rely on a controller or management platform and which continue forwarding independently during an outage.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Design tenant and management separation
We map the intended tenant boundaries and the services shared between them. Addressing, route exchange and security enforcement are specified together, including access to monitoring, backup and identity systems. Exceptions are documented as approved flows rather than hidden inside broad network access rules.
Administrative access is designed separately from ordinary workload traffic. We consider management interfaces, recovery access and the identity services used by operators. The architecture should preserve a safe way to investigate and repair the platform when the normal app or management network is itself affected.
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 ↗Align host and storage connectivity
The physical design records supported host uplinks, tagging, MTU and any link aggregation or multipath needs. We agree those settings with the virtualisation and storage teams because their endpoint setup determines how the network is used. A generic switch template cannot substitute for this compatibility review.
Storage and backup dependencies are considered according to the chosen platform. Some traffic may require dedicated paths or particular transport behaviour; other services may operate satisfactorily on shared Ethernet. We document the evidence behind the choice and avoid taking on storage-administration duties that are outside the networking engagement.
Define resilience as specific outcomes
Redundant equipment is useful only when its failure behaviour meets the service need. We identify common dependencies across power, cabling, switching, routing and security devices. The architecture describes which faults can be tolerated and what capacity remains when a path is lost.
Site recovery needs separate attention. The network can restore network access to a recovery location while apps still require data consistency, startup sequencing or identity services. We coordinate these dependencies with the recovery owners and distinguish network readiness from proof that the whole business service can fail over successfully.
Make migration and validation part of the design
An architecture is incomplete without a route from the current setup to the proposed one. We plan coexistence, gateway movement, temporary links and rollback boundaries. Workload groups are chosen for migration based on their dependencies rather than simply their physical rack position.
Acceptance criteria cover permitted communication, isolation, performance and agreed failure cases. The design states which tests need application-owner participation and which can be completed by the network team. That gives rollout a clear endpoint and prevents a service handover based only on devices appearing healthy.
Deliver records that support future decisions
The output can include high-level and detailed diagrams, addressing, port assignments, route policy, security flows and a phased rollout plan. Assumptions and unresolved decisions are visible, with an owner for each. The design is intended to be maintained as the platform grows, not filed away after installation.
MCI’s private cloud networking work can support a new platform, an expansion or a review of an inherited estate. We provide a defined architecture engagement and explain the engineering choices in language both platform specialists and business stakeholders can use when approving the next stage.
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.
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