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To do…
Use the command…
Remarks
Configure the HTTP version used in
HTTP tests
http-version v1.0
Optional
By default, HTTP 1.0 is used.
Configure optional parameters
See “
parameters for an NQA
test group
”
Optional
NOTE:
The TCP port must be port 80 on the HTTP server for NQA HTTP tests.
Configuring UDP jitter tests
NOTE:
Do not perform NQA UDP jitter tests on known ports, ports from 1 to 1023. Otherwise, UDP jitter tests
might fail or the corresponding services of this port might be unavailable.
Real-time services such as voice and video have high requirements on delay jitters. UDP jitter tests of an
NQA test group obtain uni/bi-directional delay jitters. The test results help you verify whether a network
can carry real-time services.
A UDP jitter test performs the following procedure:
1.
The source sends packets to the destination port at regular intervals.
2.
The destination affixes a time stamp to each packet that it receives, and then sends the packet back
to the source.
3.
Upon receiving the response, the source calculates the delay jitter, which reflects network
performance. Delay refers to the amount of time it takes a packet to be transmitted from source to
destination or from destination to source. Delay jitter is the delay variation over time.
Configuration prerequisites
UDP jitter tests require cooperation between the NQA server and the NQA client. Before you start UDP
jitter tests, configure UDP listening services on the NQA server. For more information about UDP listening
service configuration, see “
Configuring UDP jitter tests
Follow these steps to configure UDP jitter tests:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter NQA test group view
nqa
entry
admin-name
operation-tag
—
Configure the test type as UDP
jitter, and enter test type view
type udp-jitter
Required