Unicast

from Wikipedia, the free encyclopedia
Forms of communication /
routing schemes
Unicast

Unicast.svg

Broadcast

Broadcast.svg

Anycast

Anycast.svg

Multicast

Multicast.svg

Geocast

Geocast.svg

In telecommunications, unicast is the addressing of a message to a single recipient.

The term unicast is formed in analogy to the terms broadcast , multicast and anycast . It is addressing schemes of the network layer in the OSI model .

The term unicast does not allow any conclusions to be drawn as to whether it is a bidirectional connection, i.e. whether the sender and receiver are communicating with one another, or whether the respective data is only transmitted in one direction ( unidirectional ).

With IPv6 , certain areas are reserved for unicast addresses, which are specified by ICANN .

Unicast addresses are used here, among other things, for the temporary connection to IPv4 networks ( global unicast transition address ) or for the assignment of individual devices within closed networks ( link-local unicast address ).

See also

Web links

Individual evidence

  1. Handbook Network Technologies: Complete Basic Knowledge of Networking and Internetworking, Munich 2001, ISBN 3-8272-6080-9 , chap. 32, page 571
  2. Anatol Badach and Erwin Hoffmann: Technology of IP networks, Munich 2015, ISBN 3-446-43976-5 , p. 349ff.
  3. IANA: IPv6 Unicast Address Assignments
  4. unicast