<Tr> <Td_colspan="32"> Receive timestamp </Td> </Tr> <Tr> <Td_colspan="32"> Transmit timestamp </Td> </Tr> <Dl> <Dd> Type must be set to 14 </Dd> <Dd> Code must be set to 0 </Dd> <Dd> Identifier and Sequence number can be used by the client to match the reply with the request that caused the reply . </Dd> <Dd> Originate timestamp is the time the sender last touched the message before sending it . </Dd> <Dd> Receive timestamp is the time the echoer first touched it on receipt . </Dd> <Dd> Transmit timestamp is the time the echoer last touched the message on sending it . </Dd> </Dl> <Dd> Type must be set to 14 </Dd>

An icmp ping message is sent at the application layer of the osi model