2003 Transport Layer - Video By Sikandar Shaik || Dual CCIE (RS/SP) # 35012

The seven Open Systems Interconnection layers are
Layer 7: The application layer.
Layer 6: The presentation layer.
Layer 5: The session layer.
Layer 4: The transport layer.
Layer 3: The network layer.
Layer 2: The data-link layer.
Layer 1: The physical layer.