Versa Analytics is the component specifically designed for collecting, storing, and analyzing historical data related to network performance, application usage, and security events. Since the performance issue occurred in the past ("yesterday") and is no longer active, the administrator would use the historical data and trend analysis capabilities within the Versa Analytics dashboards to investigate and identify the root cause of the temporary degradation. It provides the necessary tools for retrospective analysis of logs, flows, and performance metrics.

A. Versa Director troubleshooting tools: These tools, such as ping, traceroute, and packet capture, are used for diagnosing active, real-time network problems, not for investigating issues that have already resolved.

C. Versa Controller logs: Versa Controller logs primarily contain information about control plane activities, such as routing protocol updates and policy distribution, not end-user data plane performance metrics.

D. Versa Director monitoring dashboards: While Versa Director provides real-time monitoring of device and link status, it is not designed for the deep, long-term historical data analysis and correlation that Versa Analytics offers.

1. Versa Networks

"Versa Analytics Datasheet": "Versa Analytics is a big data solution that provides real-time and historical insight

visibility

and security into the network... It provides analysis of historical data and trends for network and security events

enabling network and security administrators to perform historical forensics." (Page 1

"Product Overview" section). This directly supports using Analytics for past issues.

2. Versa Networks

"Versa Director Datasheet": "Versa Director provides the essential management

monitoring and orchestration capabilities... It provides a single-pane-of-glass for configuration

real-time monitoring

and reporting." (Page 1

"Product Overview" section). This highlights its focus on real-time monitoring and management

contrasting with the historical analysis role of Analytics.

3. Versa Networks

"Versa Operating System (VOS™) Datasheet": This document outlines the roles of the different components. It describes the Controller's function as managing "control plane and data plane programming" and the Director's role in "management and orchestration

" while implicitly positioning Analytics as the tool for data collection and analysis derived from VOS. (Page 2

"Versa Secure SD-WAN Components" section).