Network - Communication Protocol

A protocol design:

• the interactions that may occurs between participant
• and states of this interactions (lifecycle)

In an network, a protocol is the language description on how two or more processes will communicate together.

Same as channel ??.

Using a Shared Memory segment allows for the best performance, but greater memory usage. Using UNIX domain sockets allows for improved performance over TCP/IP, but with less memory consumption than a shared memory segment connection.

See OSI

Layer 4 of OSI are the protocol implemented by the OS - See Network - transport layer

Internet Protocol Suite (TCP/IP)

• Transmission Control Protocol (TCP)
• User Datagram Protocol (UDP)
• bluetooth

A port is also a low level

Example on windows sysinfo will list low network protocol (OSI Layer 4)

Level 7 - Application Layer

Web

• (HTTP|HTTPS) - Hypertext Transfer Protocol
• Web Service - Simple Object Access Protocol (SOAP)

Console

• Telnet (Protocol, Client)
• SSH (Secure Shell) - Remote Access

IP

• Network - Dynamic Host Configuration Protocol (DHCP)

File

• Network File System (NFS)
• File Transfer - Server Message Block (SMB) - Common Internet File System (CIFS)
• File Transfer - SFTP (SH file transfer protocol)
• File Transfer Protocol ( FTP )

Others

• LDAP: Directory
• The SMTP Protocol: Mail

Windows - System Information will list low network protocol (OSI Layer 4) such as:

• Network - TCP (Transmission Control Protocol)
• Network - User Datagram (UDP)
• bluetooth

• Page 39, 2.1.2 - Book - Hopcroft, Motwani, Ullman, Automata Theory, Languages, and Computation 3rd Edition. pdf