Marvis is Juniper's AI-driven Virtual Network Assistant (VNA). To activate the Marvis engine, including its conversational interface, proactive anomaly detection, and AI-driven troubleshooting capabilities, the "Virtual Network Assistant" subscription is required. This subscription serves as the foundation for Marvis functionality. While other assurance subscriptions like Wired or Wi-Fi Assurance provide the necessary data for Marvis to analyze, the VNA subscription is what explicitly enables the service itself.

A. Access Assurance: This subscription provides cloud-native Network Access Control (NAC) for secure network onboarding and policy enforcement, which is a separate function from the Marvis AI engine.

B. IoT Assurance: This subscription is specifically for the management, security, and location services of IoT and Bluetooth Low Energy (BLE) devices.

D. Wired Assurance: This subscription enables cloud management and service level expectations (SLEs) for Juniper EX Series switches. Marvis uses this data, but the VNA subscription is required to activate Marvis.

1. Juniper Mist Cloud Services Subscriptions Datasheet: "The Marvis Virtual Network Assistant (VNA) subscription is required to enable the Marvis VNA service. It is a prerequisite for Marvis for Wired, Marvis for WAN, and Marvis for Minis." (Juniper Networks, "Juniper Mist Cloud Services Subscriptions Datasheet", Page 3, "Marvis Virtual Network Assistant" section).

2. Juniper Mist Marvis Actions Datasheet: "A subscription to Marvis is required to see the full Marvis Actions dashboard..." This document consistently refers to the service enabled by the VNA subscription. (Juniper Networks, "Marvis Actions Datasheet", Page 1).