HUT Comms.
Lab, Timo O. Korhonen
39
TCP/IP Network transmission
UDP: User Datagram
Protocol, downgraded TCP/IP for good quality connections
ICMP: Interactive
Communication Module Protocol, testing usage
TCP, UDP
ICMP
R
R
R
Workstation 1.
R: Routers
TCP, UDP
ICMP
Workstation 2.
Repeater
Repeater
IP-network
nTPC/IP tasks:
end-to-end transmission, error correction, maintain
packet order
nInternet is
based on datagrams that address subnets via routers
nA simple routing
could be accomplished by a lookup table between target IP
and subnet IP