datagram
Self-contained data unit
A datagram is a self-contained unit of data transmitted over a network, carrying its own addressing information so it can be routed independently.
Unlike connection-based protocols, datagrams travel without establishing a dedicated path—each packet finds its own way, and arrival order isn't guaranteed.
UDP sends datagrams without waiting for acknowledgment.
The term emphasizes the telegram-like independence of each message.
Small sealed container
- UDPConnectionless transmission standard
- IPProtected creations or addresses
- connectionlessWithout persistent link
- protocolPrescribed conduct rules
transmission · header · payload · socket · port · encapsulation · fragmentation · reassembly
packet
Small sealed container
- UDPConnectionless transmission standard
- IPProtected creations or addresses
- connectionlessWithout persistent link
protocol · transmission · header · payload · socket · port · encapsulation · fragmentation · reassembly · checksum
IPv4
32-bit internet protocol
- IPv6Current network addressing protocol
- UDPConnectionless transmission standard
- pingBrief metallic tone
traceroute · router · subnet · NAT · firewall · multicast · unicast · broadcast · DNS · VoIP
datagramstream
Steady continuous flow
connection · data stream · session · circuit · guaranteed delivery