H3C S5120-EI Series, Руководство по эксплуатации

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NQA Configuration
When configuring NQA, go to these sections for information you are interested in:
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NQA Overview
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NQA Configuration Task List
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Configuring the NQA Server
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Enabling the NQA Client
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Creating an NQA Test Group
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Configuring an NQA Test Group
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Configuring the Collaboration Function
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Configuring Trap Delivery
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Configuring the NQA Statistics Function
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Configuring Optional Parameters Common to an NQA Test Group
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Scheduling an NQA Test Group
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Displaying and Maintaining NQA
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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 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 roundtrip 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 ten test types: ICMP echo, DHCP, 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.
Supporting the collaboration function
Collaboration is implemented by establishing collaboration objects to monitor the detection results of
the current test group. If the number of consecutive probe failures reaches a certain limit, NQA’s