How does Cisco DNA Center gather data from the network?
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Correct answer: Network devices use different services like SNMP, syslog, and streaming telemetry to send data to the controller.
Why this is the answer
Cisco DNA Center collects data from network devices using a variety of established protocols. SNMP (Simple Network Management Protocol) is used for polling device status and statistics. Syslog is used for receiving event logs and notifications from devices. Streaming telemetry provides continuous, high-frequency data streams for real-time monitoring and analytics. These methods allow DNA Center to gain comprehensive visibility into the network's health, performance, and security. The call-home protocol is primarily for device registration and initial configuration, not continuous data gathering. IPsec tunnels provide secure communication but are not the primary mechanism for data collection from all devices. The Cisco CLI Analyzer is a separate diagnostic tool and does not stream data directly to DNA Center.
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