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1.4 ThousandEyes WAN Insights

Describe ThousandEyes WAN Insights

Overview

ThousandEyes WAN Insights is a predictive feature that recommends optimal network paths for user applications within SD-WAN networks. It accomplishes this by:

  • Data Collection and Analysis: Collecting raw network traffic data from SD-WAN routers to determine path capacity utilization.
  • Forecasting and Recommendations: Forecasting network conditions by analyzing this data (provided through Cisco Catalyst SD-WAN Manager integration) and recommending the best paths for applications.
  • Actionable Insights: Enabling network administrators to review and apply these recommendations from ThousandEyes to Cisco Catalyst SD-WAN Manager.

This information helps network and IT teams proactively avoid experience degradation by using the recommended paths. Additionally, WAN Insights is useful for capacity planning because it provides visibility of all network paths and their utilization for the monitored applications and sites.

Preparing for the Exam

Key points to remember about ThousandEyes WAN Insights:

  1. It's a predictive feature that leverages SD-WAN router performance data to recommend optimal network paths.
  2. Integration with Cisco Catalyst SD-WAN Manager (previously vManage) is essential for its operation.

Resources

Sample Questions

1.4 Question 1

A network administrator observes a recurring pattern in their Cisco SD-WAN: during peak business hours, users at a specific branch office experience poor voice call quality, characterized by choppy audio and delays. The administrator suspects that network congestion is contributing to this issue and wants to leverage ThousandEyes WAN Insights to improve the situation proactively. Which capability of WAN Insights is most relevant to this scenario?

  • A) Monitoring the public internet paths to the voice call service provider and identifying outages or performance bottlenecks.
  • B) Analyzing historical SD-WAN performance data during peak hours and recommending alternative paths that prioritize voice traffic based on its SLA.
  • C) Generating synthetic voice traffic to proactively test network paths and identify potential congestion points during peak hours.
  • D) A set of network management tools that leverage SNMP and flow protocols into a single dashboard
  • E) Providing real-time alerts on security threats targeting voice traffic within the SD-WAN.

1.4 Question 2

ThousandEyes WAN Insights integrates with Cisco SD-WAN to provide visibility into network performance and generate path recommendations. Which two data sources from the SD-WAN environment are essential for WAN Insights to function?

  • A) Configuration data from vManage, such as device templates and centralized policy settings.
  • B) Historical network performance metrics collected by vAnalytics, including loss, latency, and jitter for SD-WAN tunnels.
  • C) Data collected from ThousandEyes endpoint agents installed on end-user devices within the SD-WAN.
  • D) Application traffic flow data from the SD-WAN data plane, categorized by vManage application lists.
  • E) Syslog messages from SD-WAN edge routers, indicating device events and errors related to tunnel establishment.