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Configuration Guide - Network Management and Monitoring

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, LLDP, NQA, Service Diagnosis, Mirroring, Packet Capture, sFlow, and NETCONF.
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Service Process of Telemetry Dynamic Subscription

Service Process of Telemetry Dynamic Subscription

Telemetry dynamic subscription indicates that a collector functioning as a client initiates a connection to a device functioning as a server to collect data.

Telemetry is a device feature in a narrow sense while is a closed automatic O&M system in a board sense. This system consists of network devices, collector, analyzer, and controller and is divided to the NMS side and device side, as shown in Figure 17-2.

Telemetry NMS side and device side operate collaboratively to complete Telemetry dynamic subscription through the following steps.
  1. Performing dynamic configuration: After the gRPC service is configured for devices that support Telemetry, the collector delivers dynamic configurations to the devices to collect data.

  2. Pushing data sampled: A network device reports data collected to the collector based on collector configurations. The collector receives and stores the data.

  3. Reading data: The analyzer reads the sampled data stored in the collector.

  4. Analyzing data: The analyzer analyzes the data sampled and sends the analysis results to the controller, so that the controller can manage and optimize the network.

  5. Adjusting network parameters: The controller delivers network configurations to the network devices that need to be adjusted. After the configurations take effect, new data sampled is reported to the collector. The Telemetry NMS side analyzes whether the network optimization meets the expectation. After the optimization is complete, the entire service process is closed.

NOTE:

Telemetry mentioned in this document refers to the Telemetry device side unless otherwise specified.

If Telemetry dynamic subscription is disconnected (for example, the device performs a master/slave main control board switchover or restarts), the device automatically cancels the subscription and stops data sampling and reporting. The configuration cannot be restored unless the collector sends a connection request again. For example, if you want to monitor an interface for a period of time, configure Telemetry dynamic subscription. To stop monitoring, tear down the connection. The subscription is automatically canceled and cannot be restored. This avoids the long-term load on devices and simplifies the interaction between users and devices.

Figure 17-2 Service process of Telemetry dynamic subscription

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Updated: 2019-04-20

Document ID: EDOC1100075344

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