3Com Switch 4210 9-Port, Configuration Manual

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498 C
HAPTER
45: R
EMOTE
-P
ING
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 4210, that is, the switch can serve as a Remote-Ping client and server
simultaneously.
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 369 Remote-Ping test parameters
Test parameter Description