3com S7906E Guide De Référence

 

1-1 

data-fill string 

undo data-fill 

ICMP-echo, UDP-echo, UDP-jitter test type view 

2: System level 

string: String used to fill a probe packet, in the range 1 to 200. It is case sensitive. 

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. 

z 

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. 

z 

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. 

z 

In an ICMP-echo test, the configured character string is used to fill the data field in an ICMP echo 

message. 

z 

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. 

z 

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. 

# 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