Keywords: NQA, test, probe, collaboration, scheduling
Abstract: Network Quality Analyzer (NQA) is a network performance probe and statistics technology used to collect statistics on the network information such as response time, jitter, and packet loss rate. NQA also provides the collaboration between the track module and the application modules to monitor network status change in real time. This manual introduces the basic concepts first, and then introduces the mechanism, technical characteristics and application scenarios of NQA in detail.
Dynamic Host Configuration Protocol
Data Link Switching
Domain Name System
File Transfer Protocol
Hypertext Transfer Protocol
Internet Control Message Protocol
Calculated Planning Impairment Factor
Mean Opinion Scores
Network Quality Analyzer
Simple Network Management Protocol
Transmission Control Protocol
User Datagram Protocol
Voice over IP
Table of Contents
With the fast development of the Internet, it supports more and more services and applications. Traditional network performance analysis tools such as ping and tracert cannot satisfy users’ requirements on service diversity and real-time monitoring of the network.
Network Quality Analyzer (NQA) analyzes network performance and service quality by sending test packets, providing you with network performance parameters such as jitter, total delay of HTTP, delay for obtaining an IP address through DHCP, TCP connection delay, FTP connection delay and file transfer rate. With the NQA test results, you can:
l Know network performance in time and then take corresponding measures.
NQA also provides the collaboration between the track module and the application modules to monitor network status change in real time, and then take corresponding actions, thus avoiding communication interruption or service quality decrease.
NQA has the following benefits: