Connect. Secure. Manage.
IP Routing
Plan and troubleshoot Cisco IP routing with clear protocol boundaries, controlled route exchange and tested recovery when links or devices fail.
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.
IP routing decides how traffic gets from one network to another. It also decides which path is used after a fault. We help you design, install and troubleshoot Cisco routing for sites, cloud services and business systems. The work sets out who owns each part and how you will check that it behaves as planned.
Cisco-focused engineering
Design around the platform, traffic and failure behaviour you actually operate.
Change with evidence
Use pre-checks, acceptance criteria and a documented route back.
Operational handover
Keep the configuration, diagrams and responsibilities understandable after delivery.
Start with the business traffic paths
A routing project begins with a map of the networks, services and dependencies involved. We identify office LANs, data-centre segments, WAN connections, cloud setups, security boundaries and external partners. We also establish which apps are sensitive to latency, packet loss or changes in the return path.
The aim is not simply to build a table of reachable prefixes. A route can be technically valid and still send traffic through an inappropriate firewall, expensive circuit or poorly performing link. We document expected paths for critical apps and identify where asymmetric routing would create problems for stateful inspection or troubleshooting.
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 between static and dynamic routing
Static routes can be appropriate for simple, stable connections with clearly understood failure behaviour. They become harder to maintain when the topology grows or when multiple links must recover automatically. Dynamic routing protocols can adapt to changes. But they introduce their own setup, security and convergence considerations.
We select an approach based on network scale, change frequency, admin boundaries and platform support. Cisco OSPF, EIGRP, IS-IS and BGP each have different strengths and support needs. Using a protocol because it is already familiar to an engineer is not enough justification. The design should explain why it fits the customer’s setup.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Separate internal and external routing responsibilities
An internal routing domain typically has different trust and policy needs from a connection to an internet provider, market-data network or business partner. We document which organisation owns each routing boundary and who is authorised to advertise or withdraw prefixes.
Route filters, prefix limits and clear export policies are important wherever one domain exchanges routes with another. We avoid unnecessary propagation of internal networks and check that default routes cannot be introduced or replaced accidentally. For BGP connections, the design may also require route-origin validation, community policy and provider-specific coordination.
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 ↗Control redistribution carefully
Some setups must exchange routes between protocols during a migration or because different platforms serve different parts of the estate. Redistribution can solve the immediate network access need while introducing loops, ambiguous route choice or unexpected reachability if it is not constrained.
We establish which prefixes are permitted to cross each boundary and how metrics and route tags will be handled. Where redistribution is unavoidable, the policy should be narrow, documented and tested. A broad ‘redistribute everything’ setup is rarely a suitable long-term operating standard.
Build resilience around failure behaviour
Redundant links do not guarantee useful failover. We examine the routing adjacencies, convergence timers, path choice and any dependencies on tracking or first-hop redundancy. A backup route that appears only after several minutes may not meet the needs of an app that needs continuity within seconds.
We also distinguish control-plane convergence from app recovery. A routing table may update quickly while an established session still needs to reconnect. Acceptance tests should capture both network state and representative app behaviour. We agree which failures can be safely simulated and which must be assessed through design evidence.
Secure the routing infrastructure
Routing peers and management interfaces should be exposed only where required. We review authentication options, permitted neighbour addresses, control-plane protections and access to setup systems. Routing changes should pass through a documented approval process, with backups and a tested rollback method.
Segmentation matters too. Virtual routing and forwarding instances can separate different customers or security zones on supported platforms. But the intended isolation must be confirmed at the interfaces and route-leaking boundaries. A VRF is a routing construct, not a substitute for all security controls.
Troubleshoot with evidence from both directions
When an app cannot connect, the problem may involve a missing route, incorrect next hop, route filter, firewall policy, DNS resolution or a failure outside the organisation’s network. We trace the forward and return paths and compare the expected design with the actual routing and forwarding state.
Useful evidence includes route tables, protocol neighbour status, interface counters, relevant logs and controlled traffic tests. We avoid changing several unrelated settings at once, because that makes it harder to identify the actual cause and increases the risk of a secondary incident.
Keep routing documentation current
The handover should include diagrams, addressing plans, protocol boundaries, route-policy descriptions and escalation contacts. Ongoing monitoring needs to distinguish a routine path change from a loss of resilience or an unexpected external advertisement. Periodic reviews help identify stale routes and setup that no longer serves a business purpose.
MCI provides Cisco and Meraki network services across the UK, especially London, Kent, Sussex, Essex and Berkshire. Whether you are connecting new sites, integrating a cloud setup or investigating unstable routes, we can establish a clear design and an operational plan suited to your network.
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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