VIPA System 300V - Protocols

Chapter 6 Deployment CPU 31x with TCP/IP Manual VIPA System 300V
6-4 HB130E - CPU - Rev. 11/50
Protocols
Protocols define a set of instructions or standards that enable computer to
establish communication connections and exchange information as error
free as possible.
A commonly established protocol for the standardization of the complete
computer communication is the so called ISO/OSI layer model, a model
based upon seven layers with rules for the usage of hardware and
software.
More detailed information about the ISO/OSI layer model is to find in the
chapter "Principles".
The CPU 31xNET from VIPA uses the following protocols that are
described in the following:
• TCP/IP
• UDP
• RFC1006
TCP/IP protocols are available on all major systems. At the bottom end this
applies to simple PCs, through to the typical mini-computer up to
mainframes (TCP/IP implementations also exist for IBM-systems) and
special processors like vector processors and parallel computers.
For the wide spread of internet accesses and connections, TCP/IP is often
used to assemble heterogeneous system pools.
TCP/IP, standing for Transmission Control Protocol and Internet Protocol,
collects a various range of protocols and functions.
TCP and IP are only two of the protocols required for the assembly of a
complete architecture. The application layer provides programs like "FTP"
and "Telnet" for the PC.
The application layer of the Ethernet portion of the CPU 31xNET is defined
with the user application using the standard handling blocks.
These user applications use the transport layer with the protocols TCP and
UDP for the data transfer which themselves communicate via the IP
protocol with the internet layer.
Outline
TCP/IP