Icmp

[sudhira]

where do we the actual usage of ICMP occurs. can anyone please provide an example

[sicarie]

where do we the actual usage of ICMP occurs. can anyone please provide an example

I'm sorry, I don't understand your question. Could you rephrase it, make your explanation a bit longer?

[Banupriya06]

where do we the actual usage of ICMP occurs. can anyone please provide an example

ICMP is used to check if the connection between two end points exists,
for more details refer RFC 792