3Com Switch 7754, Configuration Manual

Page: 876 / 940

876 C
HAPTER
81: R
EMOTE
-
PING
C
ONFIGURATION
Remote-ping
Configuration
The TCP/UDP/jitter tests need the cooperation of remote-ping client and
remote-ping Server, Other types of tests need to configure remote-ping client and
corresponding different servers.
Configuration on a
Remote-ping Server
You can enable both the remote-ping client and remote-ping server functions on a
Switch 7750, that is, the switch can serve as a remote-ping client and server
simultaneously.
HTTP operation string and version ( http-string ) This parameter is used to set the HTTP
operation string and version in an HTTP test.
FTP operation type ( ftp-operation ) This parameter is used to set the type of FTP
interaction operation between remote-ping
client and FTP server.
FTP operation type ( ftp-operation ) This parameter is used to set the type of FTP
interaction operation between remote-ping
client and FTP server.
FTP login username and password ( username
and password )
The two parameters are used to set the
username and password to be used for FTP
operation.
File name for FTP operation ( filename ) Name of a file to be transferred between
remote-ping client and FTP server
Number of jitter test packets to be sent per
probe (
jitter-packetnum )
■
Jitter test is used to collect statistics
about delay jitter in UDP packet
transmission
■
In a jitter probe, the remote-ping client
sends a series of packets to the
remote-ping server at regular intervals
(you can set the interval). Once receiving
such a packet, the remote-ping server
marks it with a timestamp, and then
sends it back to the remote-ping client.
Upon receiving a packet returned, the
remote-ping client computes the delay
jitter time. The remote-ping client
collects delay jitter statistics on all the
packets returned in the test. So, the
more packets a jitter probe sends, the
more accurate the jitter statistics is, but
the longer time the jitter test costs.
Interval to send jitter test packets
(
jitter-interval )
Each jitter probe will send multiple UDP test
packets at regular intervals (you can set the
interval). The smaller the interval is, the
faster the test is. But a too small interval
may somewhat impact your network.
Trap
■
A remote-ping test will generate a Trap
message no matter whether the test
successes or not. You can use the Trap
switch to enable or disable the output of
trap messages.
■
You can set the number of consecutive
failed remote-ping tests before Trap
output. You can also set the number of
consecutive failed remote-ping probes
before Trap output.
Table 691 Remote-ping test parameters
Test parameter Description