An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state. Which solution limits impact on the device and…

The correct answer is C. on-change subscription. To monitor shared memory utilization while minimizing impact on the device, an on-change subscription (C) is the correct solution. On-change subscriptions are a model-driven telemetry mechanism where the device only pushes data to the collector when the monitored value actually…

Automation

Question

An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state. Which solution limits impact on the device and provides the required data?

Options

AIPFIX
Bstatic telemetry
Con-change subscription
Dperiodic subscription

How the community answered

(41 responses)

A
7% (3)
B
2% (1)
C
78% (32)
D
12% (5)

Explanation

To monitor shared memory utilization while minimizing impact on the device, an on-change subscription (C) is the correct solution. On-change subscriptions are a model-driven telemetry mechanism where the device only pushes data to the collector when the monitored value actually changes. For a metric like memory utilization that may be stable for long periods, this approach generates far less data and processing overhead than alternatives. A periodic subscription (D) sends data at fixed intervals regardless of whether values have changed, creating unnecessary load. Static telemetry (B) typically refers to SNMP polling, which is less efficient because the collector must actively query the device. IPFIX (A) is a flow-based protocol designed to export IP flow information, not device resource state such as memory utilization.

Topics

#Streaming Telemetry#On-change Subscription#Device Monitoring#Network Automation

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