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NE40E V800R010C00 Configuration Guide - System Monitor 01

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Overview of Telemetry

Overview of Telemetry

Telemetry is a technology developed to fast collect data from physical or virtual devices remotely. Devices use the push mode to proactively send their data information, such as traffic statistics on interfaces, CPU usage, and memory data, to the collector at a specific interval. In the conventional pull mode, devices interact with the collector using questions and answers. The push mode implements real-time and quick data collection.

As the SDN network scale increases, more and more services need to be carried, and users have higher requirements on intelligent SDN O&M. Specifically, monitoring data should have a higher precision, so that microburst traffic can be promptly detected and adjusted. The monitoring process should have little impact on device functions and performance to improve device and network utilization.

Conventional network monitoring methods (such as SNMP get and CLI) are of low management efficiency and cannot meet user requirements because of the following disadvantages.

  • The pull mode is used to obtain monitoring data of devices. This mode cannot monitor a large number of network nodes, which limits the network growth.

  • The monitoring data's precision is minute. To improve the precision, you can only query the data more frequently. As a result, the CPU usage of network nodes is high, affecting normal device functions.

  • The data of network nodes monitored is inaccurate due to network transmission delays.

A new network monitoring mode is required to implement large-scale and high-performance monitoring on network devices. The Telemetry technology is therefore developed to meet the requirement. With this technology, the intelligent O&M system can manage more devices, monitoring data can be obtained in real time with high precision, and the monitoring process has little impact on device functions and performance. This technology provides the most important data basis for fast fault locating and network quality optimization. It converts network quality analysis into big data analysis, effectively supporting intelligent O&M.

Table 6-1 shows comparison between Telemetry and conventional network monitoring modes.

Table 6-1  Comparison between Telemetry and conventional network monitoring modes






Working mode












Whether structured

Structured using the YANG model

Structured using MIB

Structured using MIB




As shown in Table 6-1, although SNMP trap and Syslog use the push mode, only alarms or events are pushed. Monitoring data such as the interface traffic cannot be collected or sent.

Updated: 2018-07-12

Document ID: EDOC1100028538

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