Network protocols are defined rules that prescribe how data is formatted, transferred and captured so that computer network devices — from servers and routers to terminals — communicate independently differences in their infrastructures, designs or underlying standards. For the network layer, as for all other layers, there are a number of standardized but also proprietary protocols, suitable for different application areas or limited in part to certain operating systems or devices. Many of these protocols are no longer active today, due in part to the growing proliferation of the Internet protocol family. These stacks of more than 500 protocols also contain the most important and well-known IP network protocol, which is the basis of the Internet. Communication protocols used on the Internet are designed to work in different and complex environments. Internet protocols are designed for simplicity and modularity and are integrated into an approximate hierarchy of function levels defined in the Internet Protocol suite.  The first two cooperating protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP), resulted from the division of the original transmission control program, a monolithic communication protocol, into this multilayered communication suite. FCoE uses Fibre Channel, which has long been used for storage networks, but waives the requirement for totally different wiring and hardware. Instead, FCoE can be transferred via standard Ethernet networks. In FCoE, Fibre Channel`s HBA (Host Bus Adapters), which were unique maps for interface with memory in the past, can be combined with the network interface (NIC) to achieve economies of scale. FCoE uses Ethernet, but not TCP/IP. Fibre Channel over IP (FCIP) encapsulaates fiber chain images via TCP/IP.
A network administrator is usually only trained to identify an imminent threat. The organization also needs expertise that should also be qualified for network administrators and that has the expertise to manage security issues through the network. The Network Security Officer (NSO) is a title that has a broader perspective. Read more: From the Network Administrator to the Network Security Manager While network protocols typically work in the same way, each protocol is unique and works in the specific way described by the organization that created it.