Basic Concepts Of Nqa - H3C S5500-EI series Operation Manual

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Operation Manual – NQA

H3C S5500-EI Series Ethernet Switches

For the detailed description of the Track module, refer to Track Configuration.

III. Supporting delivery of traps

Traps can be sent to the network management server when a test is completed, fails, or

a probe fails.

A trap contains destination IP address, operation status, minimum and maximum

Round Trip Time (RTT), probes sent, and time when the last probe is performed

successfully. You can trace network running status with traps.

1.1.3 Basic Concepts of NQA

I. Test group

NQA can test multiple protocols. A test group must be created for each type of NQA test

and each test group can be related to only one type of NQA test.

II. Test and probe

After an NQA test is started, one test is performed at a regular interval and you can set

the interval as needed.

One NQA test involves multiple consecutive probes and you can set the number of the

In different test types, probe has different meanings:

For a TCP or DLSw test, one probe means one connection;

For a UDP-jitter test, the number of packets sent in one probe depends on the

probe packet-number command;

For an FTP, HTTP or DHCP test, one probe means to carry out a corresponding

For an ICMP-echo or UDP-echo test, one packet is sent in one probe;

For an SNMP test, three packets are sent in one probe.

III. NQA client and server

NQA client is the device initiating an NQA test and the NQA test group is created on the

NQA server processes the test packets sent from the NQA client, as shown in

1-2. The NQA server makes a response to the request originated by the NQA client by

listening to the specified destination address and port number.

Chapter 1 NQA Configuration

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