OSI Model With Protocols Per Layer
Layer 4: Transport
PDU / TCP-UDP
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Layer 5: Session
PDU / Data
Transport Layer Security (TLS)
File Transfer Protocol (FTP)
HTTP
HTTPS
Simple Mail Transfer protocol (SMTP)
Telnet
Security Copy Protocol (SCP)
Remote Procedure Call (RPC)
Layer 6: Presentation
PDU / Data
JavaScript Object Notation (JSON)
Extensible Markup Language (XML)
HyperTex Markup Language (HTML)
Security/Multipurpose Internet Mail Extensions (S/MIME)
Cascading Style Cheets (CSS)
Graphics Interchange Format (GIF)
Layer 7: Application
PDU's / Data
Secure Shell (SSH)
Simple Network Management Protocol (SNMP)
Web Service
Representational State Transfer (REST)
Simple Object Access Protocol (SOAP)
Layer 3: Network
PDU / Packets
IPv4
IPv6
Internet Protocol Security (IPsec)
Internet Control Message Protocol (ICMP)
Layer 2: Data Link
PDU / Frames
Point-to-Point Protocol (PPP)
Asynchronoous Transfer Mode (ATM)
Multiprotocol Label Switching (MPLS)
IEEE 802.2 (Logical Link Control)
Layer 2 Tunneling Protocol (L2TP)
Media Access Control (MAC)
Link Layer Discovery Protocol (LLDP)
Layer 1: Physical
PDU / Bits
Ethernet
DSL
Integrated Services Digital network (ISDN)
RS-232 (Serial Ports)
Data Over Cable Service interface Specification (DOCSIS)
Function: Transmission and reception of bits over a physical medium
Function: Reliable transmission of data frames between to computers (nodes) connected by a physical layer
Function: The management of a network including IP addresses, routing, and traffic control.
Function: Reliable transmission of data segments between network entities. Includes segmentation, acknowledgement, and multiplexing.
Function: Session management and continuous exchange of information between two nodes.
Function: Translation of data between network services and applications (i.e., character encoding, data compression, encryption, etc.)
Function: Applications & API's (resource sharing, remote file access, etc.)
Information Retrieval: All information was retrieved from CCNA Cyber Ops SECFND 210-250 livelessons provided through Safari Books On-line. By Omar Santos, published 29 March 2017
