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network communication, TRANSPORT - Coggle Diagram
network communication
data communication network
SWITCH
-layer 2
-network access of terminals
-device closest to end users
-Basic access security functions
-Layer 2 link redundancy
-Broadcast domain: A set of nodes that can receive broadcast packets form a node
ROUTERS
-Based on the destination address
-Implementing communication between networks
Routing table and routing information maintenance
-Route discovery and path selection
-WAN access
TRANSPORT
APPLICATION
TELNET
23-TCP
FTP
20,21 TCP
TRANSFERRING FILES
HTTP
80-TCP
WEB SERVERS
SMTP
TFTP
DNS
HOST DOMAINS TO IP ADDRESS
SNMP
DHCP
NETWORK
DATA
PPP: POINT TO POINT
ETHERNET
PPPoE: POINT TO POINT OVER ETHERNET
TCP
UDP