SENDER
ADP Machine
Layer 7 - Application Layer 6 - PresentationLayer 5 - SessionLayer 4 - TransportLayer 3 - NetworkLayer 2 - Data LinkLayer 1 - Physical
Keep track of how many
E-mail sent from
Identify sender andIs the initial connection
Encode data with XInitiate and terminate thehops;Send as electrical signal John:
intended receiver; is thereMake sure all data is sentset up? Put data into
coding key; use ASCII session according to Xopen shortest path First;over the network cable at Meet me at Carl's
an e-mail applicationintact.frames according to X
characters.protocol.Go to IP addressX voltage, and X Mbps. 1:30 (John)
available?standard.
255.65.0.123
Routers, Layer 3 (or IP)
Bridges and switches, Hubs, repeaters, network Devices
GatewayFirewallswitches/multilayer
ethernet*, access point adapter (NIC), cable switches
SNMP, SMTP, FTP,Firewall, NetBEUI, TCP, IP, PIX, NWlink, NetBEUI,
Protocols
NCP, AFP, TDINetBIOSEthernet, Wi-Fi, PPP, etc CAT 5, RJ-45, etc HTTP, etcSPX, Nwlink, UDPICMP
RECEIVER
ADP Machine
Layer 7 - Application Layer 6 - PresentationLayer 5 - SessionLayer 4 - TransportLayer 3 - NetworkLayer 2 - Data LinkLayer 1 - Physical
Keep track of how many
E-mail received from
hops;The initial connection set
Identified sender and Decoded data with XInitiated and terminatedReceive electrical signal John:
Make sure all data has opened the shortest path up. Decoded data in
intended receiver; found e- decoding key; used ASCII the session according toover the network cable at Meet me at Carl's
arrived intact.First;frame according to X
mail application.characters.X protocol.X voltage, and X Mbps. 1:30 (John)
Went to IP addressstandard.
255.65.0.123
Routers, Layer 3 (or IP)
Bridges and switches, Hubs, repeaters, network Devices
GatewayFirewallswitches/multilayer
ethernet*, access point adapter (NIC), cable switches
SNMP, SMTP, FTP,Firewall, NetBEUI, TCP, IP, PIX, NWlink, NetBEUI,
Protocols
NCP, AFP, TDINetBIOSEthernet, Wi-Fi, PPP, etc CAT 5, RJ-45, etc HTTP, etcSPX, Nwlink, UDPICMP
Dengan menggunakan referensi di atas, proses transmisi data yang berlangsung dapat diuraikan secara singkat, sebagai berikut:
a. Sebagaimana yang telah diuraikan sebelumnya, hal utama dan terutama yang harus dipahami dan disepakati adalah bahwa OSI Model merupakan referensi yang berisi cara kerja transmisi data / internet protocol dalam sebuah jaringan komputer.
Jaringan komputer atau computer network dapat didefinisikan sebagai sebuah jaringan yang terdiri dari “two or more computers that are connected – either by cables (wired) or WiFi (wireless) – with the purpose of transmitting, exchanging, or sharing data and resources. You build a computer network using hardware (e.g., routers, switches, access points, and cables) and software (e.g., operating systems or business applications).”4 .
b. Dalam OSI Model, proses transmisi data dilakukan secara bertahap yang jika dilihat mulai dari sisi pengirim, dimulai dari Layer Application (Layer 7) sampai dengan layer paling bawah, yaitu Layer Physical. Ketika data tersebut tiba pada sisi penerima, akan ada lagi proses penerimaan pada sisi penerima, dimulai dari Layer Physical sampai dengan Layer Application.
4 https://www.ibm.com/cloud/learn/networking-a-complete-guide