Connect. Secure. Manage.
WAN Latency and Jitter Analysis
Investigate latency and jitter across WAN paths, distinguishing local congestion, carrier behaviour and the demands of real-time applications.
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.
WAN latency and jitter analysis investigates the timing problems behind delayed conversations, inconsistent application response and unreliable real-time services. A single ping result rarely explains those experiences. MCI Network Services measures Cisco and Meraki network paths with attention to direction, observation point and traffic treatment. We turn timing evidence into a clear account of where delay occurs and which changes could realistically improve the service.
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.
Define the application and its timing sensitivity
We first identify the affected transaction or media flow. The delay a user experiences can include DNS resolution, connection establishment, encryption negotiation, server processing and data transfer. Network round-trip time is only one component. We agree tests that help separate those stages rather than assuming every slow response is caused by physical distance or carrier congestion.
The scope records source sites, destinations, working hours and the conditions under which the problem appears. A useful baseline includes normal and busy periods and, where possible, a comparison path that is not affected. We also ask whether the symptoms began after a routing change, new security inspection or application migration. That history guides the investigation without becoming a substitute for measurement.
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 appropriate observation points
Measurements taken from a router do not necessarily follow the same path as a user’s session. Source addressing, VPN selection, traffic class and security policy can all differ. We choose vantage points that reflect the service being examined and document where the test diverges from actual user traffic. Supported Cisco IP SLA or ThousandEyes measurements may complement endpoint observations.
One-way delay measurements require suitable clock synchronisation and a method that supports them. We do not divide a round-trip value by two and present it as a verified directional result. Where only round-trip data is available, the report retains that limitation. Directional packet timing can still be investigated using the appropriate evidence, but the confidence of each conclusion remains visible.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Distinguish delay from variation
A path can have stable but relatively high latency, or a low average with disruptive spikes. Those conditions affect applications differently. We examine distributions and changes over time rather than relying only on a single average. The measurement interval and packet pattern are recorded because short-lived problems can disappear in coarse summaries.
Jitter is interpreted in the context of the chosen tool and application. Different systems may calculate or display variation differently, so we do not compare unlike figures as though they are interchangeable. For voice and other real-time traffic, endpoint buffering and adaptation also influence the experience. We explain the relationship between measured path behaviour and the symptoms that users actually reported.
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 ↗Investigate the path without overreading diagnostics
Traceroute and similar tools can show useful path information, but an intermediate device’s slow or absent response does not by itself prove that it delays forwarded application traffic. We compare end-to-end results, route changes and available interface evidence. A hop is not blamed merely because it rate-limits diagnostic responses.
We review local queues, tunnel paths, internet exits and provider routing alongside the timing data. A centralised security service may add a predictable detour, while congestion can create variable delay. Wireless contention near the user can imitate a WAN problem. The investigation follows the traffic across those boundaries and identifies which observations support a local, provider or application-side explanation.
Evaluate changes against security and service constraints
Potential improvements may include correcting congestion, choosing a more suitable application path or changing where traffic exits to a cloud service. Each option has trade-offs. Shortening a path must not bypass required security inspection or create an unsupported return route. We agree the acceptable design with the customer’s network and security owners before recommending a production change.
Testing uses the same representative measurements before and after implementation. We check that an improvement for one location does not make another service worse and observe the result over an appropriate period. Where geography or the application’s architecture sets a practical lower bound, the report explains that constraint rather than suggesting a configuration change can remove unavoidable propagation or processing delay.
Leave a useful evidence trail
The deliverable includes the measurement method, timestamps, observed ranges, relevant path changes and the reasoning behind each recommendation. Provider escalations can then contain reproducible evidence instead of a general complaint that the network feels slow. Any unresolved hypothesis is paired with the additional test or access needed to examine it.
MCI supports UK-wide Cisco and Meraki estates, including organisations with cloud and financial-market dependencies. This service can stand alone or form part of a broader WAN performance review. Share the affected application, locations and approximate problem periods to begin. We will define the measurements required without assuming that an isolated speed test represents the experience your users need.
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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