Cisco & Meraki specialists. Across the UK.
+44 203 196 6566 · option 1sales@proxar.co.uk

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Network Capacity Planning

Assess utilisation, uplinks, wireless demand and growth forecasts to identify where a Cisco or Meraki network needs additional capacity.

Cisco Partner since 2009 Projects & ongoing support

Illustrative Cisco Meraki wireless access point in a modern office
Your network. Properly considered.Design · Implementation · Support
1,000+

Devices supported
across the UK

20+

Client locations
supported

Nearly 8 Tbps

Traffic handled
at peak time

3 min

Average
response time

Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.

Network capacity planning helps you decide where additional network resources are justified and where a different change would be more effective. MCI examines demand across Cisco and Meraki environments, relating observed traffic and device use to the applications and growth plans that matter. The goal is a defensible investment decision, not simply the fastest equipment available.

A slow application does not automatically indicate a bandwidth shortage. Equally, a low daily average can conceal short periods of congestion that affect important work. Capacity planning separates the evidence from the symptom and considers how the network behaves under both ordinary and degraded conditions.

01

A clear requirement

Turn the business need into a practical network scope with visible dependencies.

02

A controlled delivery

Plan implementation, testing and rollback before production changes begin.

03

A supportable result

Leave useful records, ownership and escalation routes behind.

Establish a meaningful demand baseline

We identify the links, devices and services that need assessment and the periods that represent normal and exceptional demand. Business cycles, backups, software distribution and concentrated office use can create different traffic patterns.

The quality of the available monitoring data matters. Sampling intervals and missing observations can limit what a graph tells us. We record those limitations and identify whether additional collection is needed before reaching a conclusion.

A network performance assessment may be the better starting point where the primary question is why a service is slow. Capacity planning then uses the relevant findings to determine whether growth or resource limits require investment.

Illustrative Cisco and Meraki network rack in a modern office
01The office network: switching, uplinks and structured cabling.
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Capacity exists at several points in a network. Access ports, uplinks, firewalls, VPN services, wireless airtime and device resources can each influence the result. Increasing one resource may move the constraint elsewhere rather than remove it.

We examine the path used by important applications and the functions applied along it. A platform’s published throughput figure needs to be understood in the context of enabled services, packet characteristics and the intended deployment. It is not automatically a prediction of performance in your environment.

For Cisco and Meraki networks, this means checking the relevant model, software and feature combination rather than treating all devices in a family as equivalent. Where a proposed configuration is close to a material limit, testing may be more useful than relying on a single specification.

Illustrative Cisco and Meraki fibre network rack with structured cabling
02Fibre, switching and the physical path behind the service.

A useful starting point

Not sure where to start?

Bring the requirement. We will help you define the engineering work.

Talk to a specialist

Include failure conditions in the calculation

A network can have sufficient capacity during normal operation and become constrained when one path is unavailable. We consider the work that must continue after a circuit, uplink or device failure and the resources available to carry it.

The business may accept reduced performance for lower-priority activities during an outage. That is a valid design decision when it is explicit. It is not the same as assuming that a backup connection can carry everything because it exists on the diagram.

Capacity planning therefore connects closely with resilience design. The assessment can identify where additional headroom, different traffic policies or a revised failover arrangement would make the recovery plan more credible.

Illustrative enterprise Cisco network rack in a modern office environment
03Enterprise switching and routing, built to be operated.

Translate growth plans into specific changes

A larger workforce does not necessarily increase every part of the network in the same proportion. More video meetings, a new cloud application or a data-replication requirement may affect particular paths much more than ordinary office traffic.

We map the planned changes to the resources they are likely to use. Where the forecast is uncertain, the recommendation can include monitoring thresholds and review points rather than immediate replacement. This gives the organisation a way to act before a constraint becomes disruptive without buying capacity solely from speculation.

Physical resources also matter. Additional access points or powered devices may require more ports, power budget and cabinet capacity. An upgrade plan that considers bandwidth alone can overlook the prerequisites for installing the new equipment.

Illustrative Cisco and Meraki equipment in organised data-centre racks
04Data-centre connectivity with clear physical and logical boundaries.

Receive a prioritised capacity recommendation

The output explains the observed position, relevant limits, forecast assumptions and proposed response. Recommendations distinguish configuration or policy changes from additional resources and hardware replacement. Each material proposal should identify the constraint it is intended to address.

We also record the evidence needed to confirm success after a change. A faster interface is not the final outcome; the relevant service should behave as intended under representative demand. Post-change measurements can establish whether the investment addressed the original issue.

Where several changes are needed, a technology roadmap can place them in a sensible sequence alongside lifecycle and resilience work. This avoids treating capacity as an isolated programme with its own competing maintenance windows.

Illustrative Cisco and Meraki network operations centre with monitoring displays
05Visibility, monitoring and operational control.

Capacity planning questions

Can you work from our existing monitoring system?

Yes, where its data is suitable for the question. We review coverage, collection intervals and the period available. Any gaps are identified so a conclusion is not presented with more certainty than the evidence supports.

Does high utilisation always require an upgrade?

No. It may justify more capacity, but traffic scheduling, policy or an application change could be relevant. The assessment examines the effect on the business service and the available options rather than treating one utilisation percentage as a universal replacement trigger.

Can you plan capacity for a new site?

Yes, using a clearly stated demand model and relevant evidence from comparable activities or existing sites. Estimates remain estimates until validated. The design can include review points after occupancy to check whether the assumptions reflect actual use.

What should we share first?

Describe the growth plan or capacity concern, the affected applications and any known busy periods. Arrange network capacity planning so the assessment targets the resources and decisions that matter.

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 6566

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sales@proxar.co.uk

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Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.

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