ตัวอย่างโปรโตคอลที่ทำงานใน OSI Model Session Layer,Presentation Layer,Application Layer

4.Session Layer

1. ASP  AppleTalk Session Protocol
2. ADSP  AppleTalk Data Stream Protocol
3. iSNS  Internet Storage Name Service

5.Presentation Layer

1. Apple Filing Protocol (AFP)
2. Network Data Representation (NDR)
3. Lightweight Presentation Protocol (LPP)

6.Application Layer

1. SMTP (Simple Mail Transfer Protocol)
2. FTP (File Transfer Protocol)
3. POP (Post Office Protocol)