Connect. Secure. Manage.
Multi-Cloud Network Integration
Connect workloads across cloud environments through a Cisco-led network design, balancing routing control, inspection placement and transfer costs.
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.
Multi-cloud network integration links services across more than one cloud. We plan addresses, routes and security around the actual workloads and provider models. Return paths, recovery and network-related costs are included in the design. The scope also names the teams that own each part, so cross-cloud access has a clear support route.
The whole path
Understand how sites, providers, cloud networks and security controls fit together.
Resilience that can be tested
Separate a second circuit from genuine end-to-end service resilience.
Provider coordination
Keep addressing, routing and escalation ownership clear across organisations.
Establish why the clouds need to communicate
We find the apps, shared services and data flows that require a connection. Some organisations need direct workload communication; others need users to reach separate setups without creating transit between them. Those are different designs, and unnecessary interconnection can increase complexity and exposure without providing a business benefit.
The scope includes the relevant cloud accounts or subscriptions, regions, on-premises networks and external providers. We confirm who owns each side and who may approve route or security changes. MCI's networking duties are separated from app operation and data-transfer decisions that belong to other teams.
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
Reconcile addressing before selecting connectivity
Cloud networks are often created independently and may reuse the same private ranges. We build a combined address inventory and identify conflicts before proposing route exchange. Overlap can require renumbering, translation or a more limited service-access design. It cannot be ignored simply because each cloud works correctly on its own.
The resulting plan includes future allocation ownership. Without a shared process, a later setup can introduce the same conflict again. We document which team maintains the prefix register and how new networks are checked against current on-premises and cloud-connected estates.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Compare supported connectivity patterns
Internet VPNs, private provider connections, cloud-native gateways and supported Cisco virtual routers can each have a role. We assess the options against traffic, availability and security needs. No single virtual appliance or provider service is assumed to offer every form of transit between every cloud platform.
The design sets out dependencies and commercial assumptions. Gateways, virtual resources, software licences and data transfer can be charged separately, and traffic direction can affect costs. We establish the information needed for a meaningful estimate rather than describing a technically simple route as automatically inexpensive to operate.
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 ↗Define route propagation and transit boundaries
Each cloud has its own rules for gateways, peering and route propagation. We map the supported path clearly and check where routes must be installed or exchanged. A connection between two networks does not on its own make every other network attached to either one reachable through it.
Route filters and ownership prevent unintended propagation between setups. We find the prefixes that should cross each boundary and the treatment of defaults and summaries. The return path is checked from the destination workload, including any stateful firewall or translation point that requires consistent forwarding.
Preserve security context across different platforms
Security controls may be expressed differently in each cloud and on Cisco infrastructure. We translate the intended access model into supported enforcement points rather than assume identical names mean identical behaviour. Administrative access, production traffic and shared infrastructure services are treated according to their separate needs.
Encryption is documented per path. Private transport does not on its own establish end-to-end encryption, and a VPN protects only the traffic and endpoints within its actual scope. We work with the customer's security owners to identify the required protection and the evidence needed to check it.
Design recovery without creating circular dependencies
A multi-cloud arrangement may be intended to improve resilience. But it can introduce shared gateways, identity services or routing dependencies. We examine whether failure of one cloud or intermediate network prevents the other from operating. A recovery setup that depends on the failed primary setup for DNS or route control may not meet the intended aim.
Alternative paths are assessed for capacity and app behaviour. We test agreed failures and restoration where safe, distinguishing network reachability from complete app recovery. The plan sets out manual provider or cloud actions that could affect timing instead of assuming all changes occur automatically.
Make the operating model cross-platform
The handover connects diagrams, route policies, resource ownership and escalation contacts across the setups. Monitoring should help locate a fault at the correct boundary rather than send the customer between teams that each see their own platform as healthy. Change control accounts for effects beyond the cloud where a route or permission is edited.
MCI can assess a proposed integration or rationalise a current cloud network connectivity estate. Share the workloads, cloud networks and required relationships. We can define a supported, proportionate design without suggesting that using several providers automatically delivers resilience, security or freedom from shared dependencies.
Technical references
- Azure hybrid connectivity design — Microsoft
- Catalyst 8000V Edge Software data sheet — Cisco / Cisco Meraki
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.