Connect. Secure. Manage.
Data Centre Networks
Design and support Cisco data centre networks for applications, private cloud, storage and emerging AI workloads, with resilience and operational clarity.
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.
Data centre networks connect applications, compute and storage through infrastructure that must remain understandable during growth and change. MCI provides Cisco-focused design, implementation and support for those networks, with attention to traffic paths, resilience and operating responsibilities. We help you assess the architecture that fits the workload rather than assume that the most elaborate fabric is always the right answer.
A new deployment, an expansion and an inherited environment require different work. The useful starting point is a clear account of the applications, existing platforms and decisions that need to be made before the next change.
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.
Select the architecture for the workload
Cisco Nexus switching services provide a route into the switching platform and its role in the environment. The design should establish how servers, appliances and external networks connect, with supported capabilities checked for the actual hardware and software.
Cisco ACI and VXLAN EVPN fabrics involve different architectural and operating choices. We assess policy, segmentation, scale and management requirements rather than treat the names as interchangeable descriptions of the same solution.
The proposal should explain why an architecture is suitable and what it asks of the team operating it. Technical capability is only part of the decision if the resulting environment becomes difficult to maintain safely.
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
Make application and security boundaries explicit
The network needs to reflect the communication that applications require. Shared services, tenant separation and external access should be designed deliberately rather than left to emerge from individual connection requests.
We coordinate those requirements with the teams responsible for security, virtualisation and applications. A fabric design cannot establish every application dependency without the participation of the people who own the workloads.
Acceptance tests should show that required paths work and relevant restrictions remain effective. A healthy fabric view is useful operational evidence, but it is not a complete business-service test by itself.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Plan management alongside forwarding
Cisco Nexus Dashboard can form part of the management and assurance discussion where the current platform and release support the intended functions. We verify the relevant operating model instead of applying a product label to every management requirement.
Access, configuration ownership and change controls need to be established before automation or central management is introduced. Those foundations help prevent a convenient management tool from spreading an incorrect change more widely.
The project should also identify how the network will be investigated if the management platform is unavailable. Operational knowledge and appropriate access should not depend on an unexamined single point of visibility.
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 ↗Connect sites, private clouds and storage deliberately
Data centre interconnects need a clear purpose and a defined failure model. Extending a service between sites should not be treated as a default design choice without understanding application and recovery requirements.
Private cloud networking focuses on the network supporting the private environment, not a blanket promise to operate every server or application hosted there.
Cisco storage networking has its own platform and dependency considerations. The surrounding network work must be coordinated with storage owners so that a change does not overlook a critical application or recovery path.
Assess new infrastructure without chasing labels
AI infrastructure networking starts with the actual workloads, communication requirements and supported equipment. A broad interest in AI does not by itself establish a need for a particular fabric or performance feature.
We examine the proposed design against the workload and operating constraints, including any testing needed before committing to production. Performance claims should be based on suitable evidence, not borrowed from a vendor demonstration with different conditions.
For an established estate, an architecture review or audit can identify which improvements matter most. A measured renewal plan is often more useful than replacing an entire environment before its current limitations are understood.
Data centre networking questions
Can you support a network in a third-party facility?
Yes, where authority, access and scope are agreed. Facility procedures, remote-hands arrangements and cross-connect responsibilities form part of the plan. The provider’s physical service obligations remain distinct from MCI’s network engineering work.
Is a fabric architecture always necessary?
No. The appropriate design depends on the workload, scale, segmentation and operating needs. A simpler supported arrangement may be the better choice for some environments. The recommendation should explain the trade-offs rather than assume complexity is evidence of quality.
Does network resilience guarantee application recovery?
No. Network behaviour is one part of a wider application and data-recovery arrangement. We test the agreed network conditions and coordinate with other teams, but do not claim that duplicate connections alone prove the recovery of every business service.
How do we request a review or project proposal?
Use our enquiry page to describe the environment and planned change. Our Cisco and Meraki network services can be scoped around the data centre and its wider connections, with specialist platform requirements confirmed before a delivery commitment is 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.
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