Which industry standard is used to integrate Cisco ISE and Cisco pxGrid to each other and with other interoperable security platforms?

NIST (National Institute of Standards and Technology) provides cybersecurity frameworks and guidelines, but it is not an organization that defines specific communication protocols for integration.

ANSI (American National Standards Institute) oversees the development of voluntary consensus standards in the United States, but it is not primarily responsible for defining internetworking protocols like those used by pxGrid.

The IETF (Internet Engineering Task Force) sets standards for Internet protocols, and pxGrid uses IETF-defined protocols like XMPP (Extensible Messaging and Presence Protocol) for secure, structured communication. This allows pxGrid to integrate Cisco ISE with other security platforms in a standardized manner.

IEEE (Institute of Electrical and Electronics Engineers) primarily focuses on electrical engineering, electronics, and computing standards, particularly for physical and data link layers, not the application-layer integration protocols used by pxGrid.