Nqa Configuration Commands; Nqa Client Configuration Commands - 3Com S7906E Command Reference Manual

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NQA Configuration Commands

NQA Client Configuration Commands

data-fill
Syntax
data-fill string
undo data-fill
View
ICMP-echo, UDP-echo, UDP-jitter test type view
Default Level
2: System level
Parameters
string: String used to fill a probe packet, in the range 1 to 200. It is case sensitive.
Description
Use the data-fill command to configure the string used to fill a probe packet.
Use the undo data-fill command to restore the default.
By default, the string used to fill a probe packet is the hexadecimal number 00010203040506070809.
If the probe packet is smaller than the fill data, the system uses only the first part of the character
string to encapsulate the packet.
If the probe packet is larger than the fill data, the system fills the character string cyclically to
encapsulate the packet until it is full.
For example, when the fill data is abcd and the size of a probe packet is 3 byte, abc is used to fill the
packet. When the probe size is 6 byte, abcdab is used to fill the packet.
In an ICMP-echo test, the configured character string is used to fill the data field in an ICMP echo
message.
In a UDP-echo test, because the first five bytes of a probe packet have some specific usage, the
configured character string is used to fill the remaining bytes in the probe packet.
In a UDP-jitter test, because the first 68 bytes of a probe packet have some specific usage, the
configured character string is used to fill the remaining bytes in the probe packet.
Examples
# Configure the string used to fill an ICMP-echo probe packet as abcd.
<Sysname> system-view
[Sysname] nqa entry admin test
[Sysname-nqa-admin-test] type icmp-echo
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