17
Step
Command
Remarks
11.
(Optional.) Specify the HTTP
request content.
Enter or paste the content.
By default, no contents are specified.
This step is required for the
raw
operation.
12.
Save the input and return to
HTTP operation view.
quit
N/A
Configuring the UDP jitter operation
CAUTION:
To ensure successful UDP jitter operations and avoid affecting existing services, do not perform the
operations on well-known ports from 1 to 1023.
Jitter means inter-packet delay variance. A UDP jitter operation measures unidirectional and
bidirectional jitters. The operation result helps you to determine whether the network can carry
jitter-sensitive services such as real-time voice and video services through the UDP jitter operation.
The UDP jitter operation works as follows:
1.
The NQA client sends UDP packets to the destination port.
2.
The destination device time stamps each packet it receives, and then sends the packet back to
the NQA client.
3.
Upon receiving the responses, the NQA client calculates the jitter according to the timestamps.
The UDP jitter operation requires both the NQA server and the NQA client. Before you perform the
UDP jitter operation, configure the UDP listening service on the NQA server. For more information
about UDP listening service configuration, see "
To configure a UDP jitter operation:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create an NQA operation
and enter NQA operation
view.
nqa
entry
admin-name
operation-tag
By default, no NQA operations
exist.
3.
Specify the UDP jitter type
and enter its view.
type udp-jitter
N/A
4.
Specify the destination
address of UDP packets.
destination ip
ip-address
By default, no destination IP
address is specified.
The destination IP address must
be the same as the IP address of
the listening service on the NQA
server.
5.
Specify the destination port
of UDP packets.
destination port
port-number
By default, no destination port
number is specified.
The destination port number must
be the same as the port number of
the listening service on the NQA
server.
