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Configuration Guide - Network Management and Monitoring

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, NETCONF, OpenFlow, LLDP, NQA, Mirroring, Packet Capture, Packet Trace, Path and Connectivity Detection Configuration, NetStream, sFlow, and iPCA.
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Service Process of Telemetry Static Subscription

Service Process of Telemetry Static Subscription

Telemetry static subscription indicates that a device functioning as a client initiates a connection to a collector functioning as a server to send data collected.

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 18-1.

Telemetry NMS side and device side operate collaboratively to complete Telemetry static subscription through the following steps.
  1. Performing static configuration: The controller uses commands to configure devices that support Telemetry, subscribe to data sources, and collect data.

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

  3. Reading data: The analyzer reads the data sampled 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, the devices report new data sampled 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.


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

If the connection between a device and the collection is interrupted, the device connects to the collector and sends data again. However, the data sampled when the connection is being re-established is lost.

After an active/standby switchover is performed or the system saves Telemetry service configurations and restarts, the Telemetry service reloads its configurations and continues to run. However, the data sampled during the restart or active/standby switchover is lost.

Telemetry static subscription is often used for coarse-grained data collection.

Figure 18-1 Service process of Telemetry static subscription

Updated: 2019-04-20

Document ID: EDOC1100075365

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