Examkin

Soru

Zorluk: OrtaCisco DNA Center Enabled Device Management

A network engineer is reviewing system performance and network health metrics within Cisco DNA Center Assurance. To provide real-time visibility and health scores without the high processing overhead of traditional polling, how does Cisco DNA Center gather continuous operational telemetry from managed switches?

  1. Managed switches use model-based streaming telemetry over protocols such as NETCONF or gRPC to continuously push operational state metrics to Cisco DNA Center.Cevap
  2. B
    Cisco DNA Center installs a local management agent on each switch OS to execute periodic HTTP GET requests that pull system CPU and memory metrics.
  3. C
    Cisco DNA Center relies exclusively on TACACS+ accounting packets sent over TCP port 49 to log and measure device performance metrics.
  4. D
    Cisco DNA Center initiates periodic UDP SNMP GET requests every 30 seconds to stream high-frequency telemetry data across the fabric underlay.

Cevap

Managed switches use model-based streaming telemetry over protocols such as NETCONF or gRPC to continuously push operational state metrics to Cisco DNA Center.
Cisco DNA Center Assurance leverages model-based streaming telemetry to achieve real-time health monitoring. Network devices continuously push structured operational state data to Cisco DNA Center using protocols such as NETCONF or gRPC, eliminating the CPU burden associated with frequent SNMP polling.

Adım Adım Çözüm

1
Identify the data collection requirement in Cisco DNA Center Assurance.
Assurance requires real-time, granular metrics to calculate overall Health Scores for network devices, clients, and applications.
Traditional SNMP polling introduces bandwidth and CPU overhead, making high-frequency monitoring impractical.
2
Analyze how Cisco DNA Center collects continuous telemetry from managed devices.
Devices are configured to push subscription data using YANG models via NETCONF or gRPC (streaming telemetry).
Push-based streaming telemetry delivers continuous, structured operational data in near real-time directly to the controller.

Anahtar Kavram

Cisco DNA Center Telemetry and Health Assurance
Bu soruyu puanla

Konular

Cisco DNA Center Enabled Device Management

Bu konudan daha fazla soru