TCP/IP Model Protocol MAP

Physical layered network devices

modem, cabling, antenna, repeater, transceiver

This layer is based on binary bits

Physical layer

This layer is based on MAC address

Data Link layer

Data link layer network devices

L2 switch, access point, WLC

This layer is based on IP Address

Network layer

This layer is based on socket address

Transport layer

This layer is based on URL and session id

Application layer

Protocols supported at the Physical layer

ethernet, 802.11, and serial

Protocols supported at the Data link layer

802.11, PPP, ARP, Ethernet

Protocols supported at the network layer

IP, ICMP, OSPF, EIGRP, BGP

Protocols supported at the transport layer

UDP, QUIC, TCP

Protocols supported at the application layer

HTTP, TLS, DNS, Telnet, SSH

DNS, FTP, RDP, NTP, SMTP

Network devices for network layer

router, firewall, multilayer switch

Network devices for Transport layer

firewall and load balancer

Network devices for application layer

host, firewall, proxy server, load balancer