セッション層
ADSP, AppleTalk Data Stream Protocol
ASP, AppleTalk Session Protocol
H.245, Call Control Protocol for Multimedia Communication
ISO-SP, OSI Session Layer Protocol (X.225, ISO 8327)
iSNS, Internet Storage Name Service
L2F, Layer 2 Forwarding Protocol
L2TP, Layer 2 Tunneling Protocol
NetBIOS, Network Basic Input Output System
PAP, Printer Access Protocol
PPTP, Point-to-Point Tunneling Protocol
RPC, Remote Procedure Call Protocol
RTCP, Real-time Transport Control Protocol
SMPP, Short Message Peer-to-Peer(英語版)
SIP, Session Initiation Protocol
ZIP, Zone Information Protocol
SDP, Sockets Direct Protocol(英語版)