3com 4210 PWR 9-Port 3CR17341-91-ME 用户手册

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 45: R

EMOTE

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 C

ONFIGURATION

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.

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