Huawei Quidway S9300 Configuration Manual - Network Management page 260

6 NQA Configuration
Step 2 (Optional) To configure the version number of Jitter packets, run the nqa-jitter tag-version
version-number command in the system view.
If Version 2 is adopted, after collecting the packet loss across a uni-directional link is enabled,
you can find the packet loss across the link from the source to the destination (or from the
destination to the source or from an unknown direction). According to these statistics, the
network administrator can easily detect network faults and malicious attacks.
Step 3 Run:
nqa test-instance admin-name test-name
An NQA test instance is created and the test instance view is displayed.
Step 4 Run:
test-type jitter
The test type is set to Jitter.
Step 5 Run:
destination-address ipv4 ip-address
The destination IP address is configured.
Step 6 Run:
destination-port port-number
The destination port number is configured.
Step 7 (Optional) Perform the following as required to configure other parameters for the Jitter test:
l To configure the VPN instance to be tested, run the vpn-instance vpn-instance-name
l To configure the source IP address, run the source-address ipv4 ip-address command.
l To configure the source port number, run the source-port port-numbercommand.
l To configure the probe times in the NQA test, run the probe-count number command.
l To configure the number of test packets sent each time, run the jitter-packetnum number
l To configure the interval for sending test packets, run the interval { milliseconds interval |
l To configure the percentage of the failed NQA tests, run the fail-percent percent command.
l To send the NQA test packet without searching the routing table, run the sendpacket
l To configure a code type for an NQA Jitter simulated voice test case, run the jitter-codec
6-40
command.
command.
The Jitter test is used to collect statistics and perform analysis of the transmission delay
variation of the UDP packets. The system sends multiple test packets for each test to make
the statistics more accurate. The more test packets are sent, the more accurate the statistics
and analysis are. This process, however, is time consuming.
NOTE
The number of the Jitter tests depends on the probe-count command. The number of test packets sent
during each test depends on the jitter-packetnum command. During the actual configuration, the
product of the number of test times and the number of the test packets must be less than 3000.
seconds interval } command.
The shorter the interval for sending the Jitter test packets is, the faster the test is completed.
If the interval, however, is set to a very small value, the jitter statistics result may have a
greater error.
passroute command.
{ g711a | g711u | g729a } command.
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Quidway S9300 Terabit Routing Switch
Configuration Guide - Network Management
Issue 03 (2010-09-20)