This post will introduce you a support protocol in the Internet protocol suite ICMP.
What is this ICMP protocol?
Well, you’ve got the option to get the details from this post.

ICMP Definition
What is ICMP?
TheICMP(Internet Control Message Protocol) is an error-reporting protocol used for web link devices like routers.
It will generate error messages to the original IP address when IP packets are prevented due to connection issues.
How does ICMP work?
Where is ICMP protocol applied?
you might get the detailed information from this post ofMiniTool.
The header data area of ICMP is limited and has a form as shown in below.
As the table shows, the first 8-bit decides the throw in of notification the ICMP packet.
The information can be specified further with the below code field, which also has a length of 8-bit.
As for ICMP checksum, it follows the information about the message punch in.
Besides, it can ensure the accuracy of the notification.
The ICMP files are built and structured differently based on the respective key in and the triggering instance.
What is ICMP used for?
According to investigation, ICMP protocol has 2 uses.
The first and foremost one iserror reporting.
The send one isnetwork diagnostics.
Now, lets explain them one by one.
Error reporting
ICMP is vital in the communication of IP networks.
It is often used in routers.
Therefore, ICMP is very useful for users.
Because of this feature, ICMP is widely used.
data pipe Diagnostics
Another app of ICMP is to perform data pipe diagnostics.
The ICMP is commonly utilized intracerouteandping.
The traceroute is often used to show the routing path between the two Internet devices.
The trip between one router and another is famous as a hop.
This can help you determine the sources of online grid delay.
In the practical life, the ICMP echo-request and echo-reply messages are often used for performing a ping.
Top recommendation:How to Fix High Ping?
After reading this post, you will have an overall understanding of ICMP protocol.
Here comes the end of this post.