175
•
For the UDP echo operation, the first five bytes of the payload of a UDP packet are for special
purpose. The string fills the remaining part of payload.
•
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
# In TCP template view, specify
abcd
as the payload fill string for requests.
<Sysname> system-view
[Sysname] nqa template tcp tcptplt
[Sysname-nqatplt-tcp-tcptplt] data-fill abcd
data-size
Use
data-size
to configure the size of the payload in 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 50 Default payload size of a probe packet
Operation type
Codec type
Default size (bytes)
ICMP echo
N/A
100
UDP echo
N/A
100
UDP jitter
N/A
100
UDP tracert
N/A
100
Path jitter
N/A
100
Voice G.711
A-law
172
Voice G.711
µ-law
172
Voice G.729
A-law
32
Views
ICMP/UDP echo operation view
Path/UDP jitter operation view
UDP tracert operation view
