Asynchronous Transfer Mode (ATM) is a networking technology that supports voice, video, and data over a single network using fixed-size cells. It defines two types of interfaces: the User-to-Network Interface between user devices and switches, and the Network-to-Network Interface between switches. ATM provides advantages like support for multimedia services, scalability, and high bandwidth, but is less efficient than other technologies and had high initial costs that decreased over time as standards were still being developed.

1. Asynchronous Transfer Mode (ATM)
Prepared By,
Mahbuba Akter Dipa
Roll:15102010

3. User-to-network interface
(UNI): interface between
endpoint (user access devices)
and network switches.
Network-to-network interface
(NNIs): interface between
switches insides the network.

4. Advantages of ATM
• ATM supports voice, video and data allowing multimedia and mixed
services over a single network.
• Provides the best multiple service support
• Supports delay close to dedicated services
• Scalability
• Higher aggregate bandwidth
• High speed Mbps and possibly Gbps

5. Disadvantages of ATM
• Flexible to efficiency’s expense
• Cost decrease with time
• ATM’s capabilities many details are still in the standards process

6. Thank You