H3C Technologies H3C S7500E Series Switches - Manual (Page 21)

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NQA Configuration
This chapter includes these sections:
z NQA Overview
z NQA Configuration Task List
z Configuring the NQA Server
z Enabling the NQA Client
z Creating an NQA Test Group
z Configuring an NQA Test Group
z Configuring the Collaboration Function
z Configuring Trap Delivery
z Configuring the NQA Statistics Function
z Configuring the History Records Saving Function
z Configuring Optional Parameters Common to an NQA Test Group
z Scheduling an NQA Test Group
z Displaying and Maintaining NQA
z NQA Configuration Examples
NQA Overview
Introduction to NQA
Network Quality Analyzer (NQA) analyzes network performance, services and service quality through
sending test packets, and provides you with network performance and service quality parameters
such as delay jitter, TCP connection delay, FTP connection delay and file transfer rate.
With the NQA test results, you can:
1) Know network performance in time and then take corresponding measures.
2) Diagnose and locate network faults.
Features of NQA
Supporting multiple test types
Ping can use only the Internet Control Message Protocol (ICMP) to test the reachability of the
destination host and the round-trip time of a packet to the destination. As an enhancement to the Ping
tool, NQA provides multiple test types and more functions.
At present, NQA supports 11 test types: ICMP echo, DHCP, DNS, FTP, HTTP, UDP jitter, SNMP, TCP,
UDP echo, voice and DLSw.
In an NQA test, the client sends different types of test packets to the peer to detect the availability and
the response time of the peer, helping you know protocol availability and network performance based
on the test results.