Connect. Secure. Manage.
Private Peering Integration
Integrate agreed private peering arrangements with Cisco networks, covering route policy, address ownership and operational escalation 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.
Private peering integration establishes a controlled routing relationship between networks that need to exchange agreed traffic directly. A successful BGP session is only one part of that service. MCI Network Services integrates Cisco private peerings with the customer’s wider routing and security design, covering prefix ownership, handoff coordination and application validation. We focus on making the connection predictable during normal operation, failure and future change.
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.
Agree what the peering is intended to carry
The parties need a shared specification of the service. We identify the applications, authorised address ranges and traffic directions involved, then distinguish the peering from internet transit or unrelated partner access. A private relationship should not accidentally expose internal networks or make either organisation carry traffic for a third party.
The specification also records commercial and operational ownership. A data-centre operator may deliver the cross-connect while another organisation operates the peer router and a separate team owns the application. We establish the contacts and approvals required for each layer. This avoids a cutover in which the physical circuit is ready but no one is authorised to accept the intended routes.
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
Validate the handoff and platform requirements
We review the agreed interfaces, optics, addressing, MTU and any VLAN encapsulation. The Cisco device must support the required routing scale and feature set in its actual hardware and software state. A handoff suitable for a small number of private prefixes should not silently become an invitation to receive a much larger route table.
The design identifies whether peers are directly connected or rely on another supported arrangement. Transport reachability, access controls and management access are checked before the BGP configuration is activated. Where a virtual routing context separates the peering from the rest of the estate, its interface assignments and route exchange are documented explicitly. The resulting design should be understandable beyond the individual engineer implementing it.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Build explicit import and export policy
We define which prefixes may be received and which may be advertised. Filters, route limits and supported peer protections are selected according to the actual relationship. Private networks still require origin and ownership checks even where public internet validation mechanisms do not apply. No route is accepted merely because it arrived over a private circuit.
Attributes and communities are used only where their meaning is agreed with the remote party. We document the intended preferred paths and the effect of a route withdrawal. Default routes require particular scrutiny: an unintended default can redirect traffic that has nothing to do with the private service. The policy also prevents routes learned elsewhere from leaking through the peering without authorisation.
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 with internal routing and security
The customer needs a controlled path from application networks to the private handoff. We examine static routes, interior routing and any redistribution boundary. Forward and return paths are reviewed together, especially where stateful firewalls or address translation are involved. A valid route in one table does not prove the application can establish a usable bidirectional session.
Security policy follows the approved service flows, not every prefix visible from the peer. We decide where inspection is required and whether the traffic needs encryption in addition to private transport. Management access to the peering devices remains separate from application connectivity. These distinctions help preserve the customer’s security model while making the required service available.
Test failures and restoration jointly
Where resilient peerings are planned, we assess circuit and device diversity and agree the expected routing behaviour. Two sessions on one shared path do not establish independent availability. We define the effect of a failed session, a failed physical connection and loss of an upstream dependency, then choose safe tests for the deployment window.
Acceptance records include received and advertised prefixes, selected next hops and representative application transactions. The remote team confirms its view of the exchange so that a one-sided success does not hide a return-path problem. Untested scenarios are recorded as such. We also check restoration, because a returning preferred path can create a second interruption or expose inconsistent policy between devices.
Make future changes controlled and observable
The handover includes the peering register, prefix policy, normal state and escalation details. New networks, autonomous-system changes and altered community policy need review with the other party. Monitoring should distinguish loss of a backup session from complete service loss and make unexpected advertisements visible to an accountable team.
MCI can implement a new private peering, review an inherited connection or support a provider-coordinated change. The work complements our BGP routing services and private interconnect design. For an initial scope, provide the handoff specification and required service paths through an agreed channel. We will identify missing prerequisites before committing the production network to the new relationship.
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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