ICMP
Principle of operation
ICMP signals are generated automatically in the following cases:
- network equipment is not able to redirect the flow to a more convenient route;
- is unable to operate at the required speed;
- packs do not reach the pickup point;
- packs do not reach the pickup point;
Formation of ICMP messages is based on 3 basic principles:
- the message is sent immediately if a corrupted IP packet is detected;
- if a generated ICMP packet is lost during transmission, a new one is not generated;
- ICMP is not used for mass mailings to avoid overloading network traffic.
It is important to understand that the protocol does not eliminate errors, but only signals their presence at the time of sending a message.