No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

AMI Smart Meter Reading Solution V200R010C10 Planning and Design Guide

This document describes the overall and detailed design of functions and services in the AMI Smart Meter Reading Solution.
Rate and give feedback:
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).
EEM Reliability Design

EEM Reliability Design

In the AMI solution, the EEM and DCP provide the device control management channel and data collection platform, receive instructions from the application system, and connect to and manage onsite devices. The EEM is the device management and maintenance platform; therefore, EEM reliability is the key to ensuring that the application system can properly manage devices. An EEM cluster is often deployed to ensure EEM reliability.

Three servers need to be deployed in the EEM cluster. The EEM cluster can work properly when one server fails. Nodes in the EEM cluster share data; therefore, services are not affected if any EEM node becomes faulty.

The service reliability of the EEM is implemented through load balancing, and the Nginx achieves load balancing. When the Nginx and EEM deployed on the same device, 2 million concurrent connections can be set up, the forwarding rate at Layer 7 is 20000 per second, and load balancing is implemented.

In the AMI solution, the Nginx uses the active/standby mode to ensure reliability of the load balancing service. Among EEM nodes of the EEM cluster, any two EEM nodes are used as Nginx servers. The Nginx servers work in active/standby mode and communicate with other components through floating IP addresses. The standby Nginx server uses the heartbeat IP address to detect the status of the active Nginx server. When the active Nginx server fails, the floating IP address is switched to the standby Nginx server and the standby Nginx server becomes the active one.

Translation
Download
Updated: 2019-03-07

Document ID: EDOC1100069579

Views: 6927

Downloads: 11

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next