... ISO -IP ISO IP 150 SQL-NET SQL NET 153 SGMP SGMP 156 SQLSRV SQL Service 160 SGMP-TRAPS SGMP TRAPS 161 SNMP SNMP 162 SNMPTRAP SNMPTRAP 163 CMIP-MANAGE CMIP/TCP Manager 164 CMIP-AGENT CMIP/TCP ... After winding its way over the network, the receiving machine's IP passes the received segment up to the recipient machine's TCP layer, where it is processed and passed up to the ... looking at the subject of TCP /IP by covering some background information you will need to put TCP /IP in perspective, and to understand why the TCP /IP protocols were designed the way they are....