What Osi Layer Is Icmp

ICMP (Internet Control Message Protocol) is located at the Network layer of the OSI model (or just above it in the Internet layer, as some argue), and is an integral part of the Internet Protocol suite ( commonly referred to as TCP/IP).

Is ICMP a transport layer protocol?

Unlike the Internet Protocol (IP), ICMP is not associated with a transport layer protocol such as TCP or UDP. This makes ICMP a connectionless protocol: one device does not need to open a connection with another device before sending an ICMP message.

What are the three layers in the ICMP packet?

data unit of layer 1 is bits , data unit of layer 2 is frames , data unit of layer 3 is packets .