Which Catalyst IE switch acts as an SD-Access (SDA) Extension Policy Extended Node?

The Cisco Catalyst IE3400 Rugged Series Switches act as SD-Access Extended Nodes. These switches are part of Cisco’s Industrial Ethernet product line and are designed to support the extension of Software-Defined Access (SDA) features. This capability allows the IE3400 to integrate seamlessly with Cisco’s policy-based network architecture, providing enhanced security, automation, and simplification at the network edge in rugged environments.

References:This information is supported by Cisco's official product descriptions and technical specifications that detail the role and capabilities of the IE3400 as part of Cisco’s extended enterprise networking solutions.