For the UDP jitter operation, the first 68 bytes of the payload of a UDP packet are for special
•
purpose. The string fills the remaining part of the payload.
For the voice operation, the first 16 bytes of the payload of a UDP packet are for special purpose.
•
The string fills the remaining part of the payload.
For the path jitter operation, the first four bytes of the payload of an ICMP echo request are for
•
special purpose. The string fills the remaining part of payload.
Examples
# Specify abcd as the payload fill string for ICMP echo requests.
<Sysname> system-view
[Sysname] nqa entry admin test
[Sysname-nqa-admin-test] type icmp-echo
[Sysname-nqa-admin-test-icmp-echo] data-fill abcd
data-size
Use data-size to set the payload size for each probe packet.
Use undo data-size to restore the default.
Syntax
data-size size
undo data-size
Default
The default payload size of a probe packet for different operations is described in
Table 5 Default payload size of a probe packet
Operation type
ICMP echo
UDP echo
UDP jitter
UDP tracert
Path jitter
Voice
Voice
Voice
Views
ICMP/UDP echo operation view
Path/UDP jitter operation view
UDP tracert operation view
Voice operation view
Codec type
N/A
N/A
N/A
N/A
N/A
G.711 A-law
G.711 μ-law
G.729 A-law
15
Table
5.
Default size (bytes)
100
100
100
100
100
172
172
32