What is the purpose of 'Network Segmentation' in Cisco ISE?

Network segmentation in Cisco Identity Services Engine (ISE) is primarily aimed at isolating different user groups and devices within a network. This approach enhances security by allowing organizations to create distinct zones for various types of users, devices, or applications, effectively reducing the attack surface. By segmenting the network, administrators can enforce tailored security policies, access controls, and monitoring practices for each segment, ensuring that sensitive data and resources are shielded from unauthorized access.

This differentiation is critical in environments where various levels of trust should be assigned to different user categories, such as guests, employees, and high-security devices. It can also support compliance requirements by restricting access to certain data or applications based on user roles or device types.

The other options do not align with the fundamental purpose of network segmentation. Enhancing aesthetic appeal, increasing bandwidth for users, or providing universal access are not objectives that contribute to the security posture or manageability of a network, which is the core intent behind implementing segmentation through solutions like Cisco ISE.