H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 136)

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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 Threshold Monitoring
z Configuring the NQA Statistics Collection Function
z Configuring the History Records Saving Function
z Configuring Optional Parameters for an NQA Test Group
z Scheduling an NQA Test Group
z Displaying and Maintaining NQA
z NQA Configuration Examples
NQA Overview
Network Quality Analyzer (NQA) can perform various types of tests and collect network performance
and service quality parameters such as delay jitter, time for establishing a TCP connection, time for
establishing an FTP connection, and file transfer rate.
With the NQA test results, you can diagnose and locate network faults, know network performance in
time and take corresponding measures.
Benefits 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. As an enhancement to Ping, NQA provides more test types and
functions.
NQA supports ten test types: ICMP echo, DHCP, DNS, FTP, HTTP, UDP jitter, SNMP, TCP, UDP echo,
and voice.
NQA enables the client to send probe packets of different test types to detect the protocol availability
and response time of the peer. The test result helps you understand network performance.
Supporting the collaboration function
Collaboration is implemented by establishing reaction entries to monitor the detection results of NQA
probes. If the number of consecutive probe failures reaches a certain limit, NQA informs the track