Case Study

Cisco Refresh Across Seven Aircraft Carriers for the UK Ministry of Defence

UK Ministry of DefencePublic Sector & DefenceApril 2026
£0Cost Savings
0Lifespan Extended
71.6tCO2e Saved
0Carbon Reduction

The UK Ministry of Defence (MoD) works to protect the UK’s people, territories, values and interests at home and overseas, across the Royal Navy, British Army and Royal Air Force. Cisco technology underpins some of the most secure and demanding operational environments in the world, including critical infrastructure aboard aircraft carriers deployed across the globe.

The challenge

The MoD needed to increase capacity across seven datacentres based on aircraft carriers operating worldwide. The existing platform relied on Cisco technology that had reached end of sale, meaning like-for-like replacements could no longer be sourced directly from Cisco.

What we did

Working in close collaboration with the MoD from the outset, Cistor analysed the network requirements in depth. Using specialist knowledge of the used Cisco market and Cistor’s Cisco Circular Economy Partner status, the team sourced the end-of-life components needed, returned them to Cisco for remanufacturing, and delivered a resilient solution blending new, remanufactured and reused technology.

The results

Instead of a costly and time-consuming full hardware refresh, Cistor extended the lifespan of the MoD’s existing Cisco platform across all seven aircraft carriers by a further five years, with mission readiness maintained throughout and zero disruption. 1.8 tonnes of e-waste was avoided in the process.

This is a summary of a published Cistor case study.

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