In the framework of Designing and Implementing Enterprise Network Assurance (300-445 ENNA) , selecting the appropriate ThousandEyes agent type is critical to balancing visibility requirements with infrastructure constraints. For Branch A, the primary objective is to gain network-layer metrics (such as latency, packet loss, and jitter) and path visualization for a SaaS application while strictly avoiding any performance impact on employee endpoints.
The Enterprise Agent (Option C) is the correct choice because it is designed for " inside-out " monitoring from within the corporate network environment. These agents are lightweight software probes that can be deployed on existing network infrastructure, such as Cisco Catalyst 9300/9400 switches or Catalyst 8000 Edge Platforms , using Docker containers or virtual machines. By hosting the agent on the branch router or a dedicated local server, the engineer can execute synthetic tests to the SaaS provider ' s destination. This approach provides the necessary network vantage point from Branch A without requiring any software installation or resource consumption on the individual employee workstations (endpoints).
Other agent types do not satisfy the specific constraints of this scenario:
Endpoint Agents are installed directly on user devices (Windows/macOS) to provide " last-mile " visibility. However, they use the endpoint ' s CPU and memory, which contradicts the requirement to not affect endpoint performance.
Cloud Agents are maintained by Cisco in global ISP data centers. While they provide " outside-in " visibility, they cannot capture internal branch network characteristics or the specific path from Branch A ' s internal local area network.
Application Agent is a non-standard term and does not exist as a standalone agent type within the ThousandEyes architecture.
Therefore, deploying an Enterprise Agent within the branch infrastructure ensures that the network engineer obtains high-fidelity network metrics while keeping employee devices entirely unburdened.
Introduction to ThousandEyes
This video provides an essential overview of how ThousandEyes agents function within a CCNP-level enterprise network assurance strategy.
