Switching technologies
Switching technologies have been developed for end to end
routing of the data flows. The following switching technologies are
- Circuit Switching which is based on the division of the transmission capacity into fixed timeslots called as channels or circuits. Channels are allocated end to end between users.
- Packet Switching where variable length data units (from 40 to 4000 octets) are stored and forwarded in each network node.
- Cell Switching where small fixed length data units called cells (ATM 53 octets) are stored and forwarded.