Which technology allows for Cisco ISE to share endpoint contextual information with other security and network platforms?

The technology that enables Cisco Identity Services Engine (ISE) to share endpoint contextual information with other security and network platforms is Cisco pxGrid. This framework provides a distributed architecture for exchanging contextual information across various platforms, enhancing overall security posture through integration.

Cisco pxGrid facilitates the creation of a shared context for endpoints, allowing for real-time sharing of attributes and insights. This capability is crucial for security operations, as it enables different systems to work together more cohesively. For example, endpoints being profiled in ISE can share their status and attributes with a Security Information and Event Management (SIEM) system or a firewall, ensuring that responses to security incidents can be based on comprehensive data.

In contrast, TACACS+ is primarily focused on providing a secure protocol for remote authentication and authorization, which does not directly involve sharing contextual information. Profiling, while important for identifying and classifying endpoints within the network, does not inherently enable the sharing of that information with other platforms. Software-Defined Access leans more towards network control and automation rather than the integration of contextual data across multiple ecosystems.