datagram

Alternative forms

datagramme

Etymology

From data +‎ -gram.

Pronunciation

Audio (UK): (file)

Noun

datagram (plural datagrams)

(networking) A packet of data passed across a network.
- 1980 August 28, Jon Postel, “User Datagram Protocol”, in RFC Editor, →ISSN, RFC 768:
  The pseudo header conceptually prefixed to the UDP header contains the source address, the destination address, the protocol, and the UDP length. This information gives protection against misrouted datagrams.

Usage notes

Although the specifications of the Internet Protocol say that datagrams are what pass through the network, the word packet is more commonly used.

Derived terms

Translations

networking

Finnish: datagrammi, tietosähke
Greek: δεδομενόγραμμα (el) n (dedomenógramma)

Verb

datagram (third-person singular simple present datagrams, present participle datagramming, simple past and past participle datagrammed)

(rare) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.
- 1981 October, Alfred R. Dixon Jr., “Data Base Management”, in Terry Tufts, editor, The Harvest, volume 3, number 2, Arlington Heights, Ill.: Northern Illinois Apple Users Group, →OCLC, page 13, column 1:
  The Modifiable Data Base is a very nice system and is, generally, highly recommended* It is memory dependent and, once formated,^[sic] (datagrammed) is not changeable.
- 1992 July 31, Dave Pierson, “Uploads to wuarchive.wustl.edu”, in rec.railroad‎ (Usenet), archived from the original on 5 June 2025:
  >* How does the dispatch station know where the trains are? Is it
  >just by the engineer notifying them, or is it done by some computerized
  >system in the track?
  Varies. Most common is by track circuits, in which the train indicates occupancy of a "block" by shorting the rails together. This gets "datagrammed" to the CTC center. (short hand, simplified description).
- 1999 October 30, Decklin Foster, “[haiku] nyc right about now.”, in alt.teens.poetry.and.stuff‎ (Usenet), archived from the original on 5 June 2025:
  the crowd mills about datagrammed packets flowing without words to say.