In this part of our series on data centre and campus architecture, developed together with Arista Networks, we turn our focus to segmentation in campus environments. We explain why traditional divisions are no longer sufficient, and how security can be built into the architecture to reduce risk and increase control.

A campus network under pressure

The campus network today is more complex than ever. It has to handle employees, guests, IoT devices, specialist equipment and mobile ways of working, often across multiple sites. At the same time, high availability, consistent security and fast handling of changes are expected.

In many organisations, the campus environment has been built up in layers over time. Switching is delivered by one platform, wireless by another, and access control by a third. Each system works in isolation, but together they create operational complexity.

Different policy models, separate management interfaces and a lack of correlation between events make troubleshooting more demanding. They also make governance more fragmented.

For management, this is about more than technical architecture. It is about manageability and risk.

When security policies have to be implemented in several places, the likelihood of inconsistency increases. When troubleshooting requires information from several systems, response times increase. At the same time, different update cycles can create dependencies that affect stability.

An integrated approach to segmentation

Arista’s approach to campus is based on an integrated platform where switching, wireless and access management are administered together. Policy is defined once and enforced consistently, regardless of whether the user is wired or wireless.

Telemetry is collected centrally, so that events can be analysed in context.

Technically, this means fewer interfaces and more consistent policy handling. Strategically, it means reduced operational complexity and better control.

A unified platform also provides a better basis for compliance. When access rules and segmentation are centrally defined and documented, the organisation can more easily show how security requirements are enforced in practice.

Arista provides the technical architecture that makes this integration possible. nLogic works closely with customers to make sure the platform is adapted to the organisation’s structure, lines of responsibility and security requirements. Migration from fragmented environments is carried out in a controlled, step by step manner, so that stability is maintained.

The value lies not only in the technology, but in the simplification of the governance model. When complexity is reduced, capacity is freed up. When policy is enforced consistently, risk is reduced. When the infrastructure appears as one unified platform, it becomes easier to develop further.

For organisations that want to reduce their operational burden while strengthening security, integration is a strategic choice.

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