In the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) curriculum, the integration of ThousandEyes with the Cisco SD-WAN fabric is a cornerstone of modern wide-area network visibility. The primary agent type used in this native integration is the Enterprise Agent (Option C).
According to the ENNA implementation guidelines, ThousandEyes Enterprise Agents run as containerized applications directly on the Cisco IOS XE software stack (version 17.6.1 and later) of supported hardware, such as Cisco Catalyst 8000 Edge Platforms and ISR 4000 Series routers . 3 This deployment is orchestrated centrally through Cisco Catalyst SD-WAN Manager (formerly vManage), which handles the lifecycle management, including downloading the Docker-based agent image from the Cisco software repository and pushing the initial configuration to the branch edge devices. 4
Once deployed, these Enterprise Agents function as internal vantage points that can measure performance across both the underlay transport and the SD-WAN overlay . By placing the agent on the router, engineers can execute synthetic tests to monitor mission-critical SaaS applications or data center services directly from the branch ' s perspective, avoiding the need for extra hardware probes at each site. This " agent-on-router " architecture significantly reduces both CapEx and OpEx while providing high-fidelity network intelligence into ISP peering, regional outages, and fabric health.
Cloud Agents (Option A) are managed by Cisco in global data centers and cannot be " installed " on customer edge routers.
Endpoint Agents (Option D) are designed for user workstations or laptops and do not provide the infrastructure-level visibility required for SD-WAN transport monitoring.
Browser Agent (Option B) is not a specific standalone agent type in this context; rather, browser-level testing is a capability often performed by Endpoint or Enterprise Agents.
Therefore, the Enterprise Agent is the correct verified agent type for Cisco SD-WAN vManage integration.
