Ping stands for
Packet Internet Groper , a utility application that is provided by Micosoft
windows which functions as a network connection with a probe -based
Transmission Control Protocol / Internet Protocol ( TCP / IP ) , a more
complete understanding please look at wikipedia . The function of the program
is to test whether ping one computer
to another has been connected in a network / not with sends a packet of data to
another computer .
The workings of ping is
to send an IP datagram to a host who will then receive a reply / response form
of round trip time . In the process uses ICMP messages and ping echo reply . Below is an example of what I do ping between computers :
Definition , Function and Explanation PING on Command Promt
click image to enlarge
The purpose of the experiment and the results of the ping above are :
# Pinging 192.168.0.1 with 21 bytes of data : we have to ping the IP 192.168.0.1 with 32 bytes
of data
# Packets : sent = 4 , receive = 4 , lost = 0 < 0 % loss
> , : means packets sent nothing is lost [ 4 sent 4 received ]
# Transmitted data size 32 bytes because it is the default
buffer size on windows
# Function of buffers in windows is to look at the time
taken to perform packet data transmission [ mean when pinged with a different
host then the result will be different ]
# Then what is the purpose of a reply from 192.168.0.1 :
bytes = 32 time < 1ms TTL 128 ?
- TTL which stands for Time To Live , which is the maximum
time from the computer when reply / reply ICMP packets or also called latency /
delay . TTL on windows by default is 128 .
- Why is this limited number of TTL ? it is to prevent
circular routing in the network , because it is every time the ping packet through the host's IP TTL
value will be reduced by one , until the TTL has a value of 0 . With a value of
0 will discard this packet and drop the TTL expired in transit keterangn .
# The smaller the value of time and the packet loss from the
ping results network connection is
used the better .
Well that sense , the function and purpose of the ping in the command prompt . Hopefully
the discussion of computer science this time can be understood clearly and can
provide benefits to you .
