Final Atm
C
ATM Technology
[pic]
Prepared
By
Eng/Abdulrahman M. Abutaleb
P T E R
1-Introduction:
.
Asynchronous Transfer Mode (ATM) is a technology that was defined by the ITU-T (formerly known as the CCITT) in the early 1990s. The related standards describe a transport technology in which information is carried in small, fixed-length data units called cells. ATM is a project invented by the telephone industry because after Ethernet was widely installed, the computer industry never rallied around any higher-speed network technology to as it standard. The telephone companies filled this vacuum with ATM, although in October 1991,many computer vendors joined with the telephone companies to setup the ATM forum, an industry group that will guide the future of ATM.
ATM is designed to replace the entire circuit-switched telephone system with cell switching and be able to handle data and television as well.
ATM networks are connection-oriented. This Course provides summaries of ATM protocols, services, and operation. Figure 1 illustrates a private ATM network and a public ATM network carrying voice, video, and data traffic.
[pic]
In particular, this course focuses on how ATM devices efficiently process and transmit user traffic as discrete, fixed-length ATM cells at very high speeds.
ATM technology can be used in the following types of networking environments: • Private workgroup or enterprise networks • Large public networks • Hybrid combinations of both private and public networks
ATM technology is rapidly being implemented in these networking environments to enable the seamless interconnection of local area networks (LANs) and wide area networks (WANs). Furthermore, ATM technology enables the switching and transport of multiple traffic types at comparatively high speeds in a single switching fabric.
2- ATM Benefits:
ATM technology offers the following primary benefits:
•
ATM Technology
[pic]
Prepared
By
Eng/Abdulrahman M. Abutaleb
P T E R
1-Introduction:
.
Asynchronous Transfer Mode (ATM) is a technology that was defined by the ITU-T (formerly known as the CCITT) in the early 1990s. The related standards describe a transport technology in which information is carried in small, fixed-length data units called cells. ATM is a project invented by the telephone industry because after Ethernet was widely installed, the computer industry never rallied around any higher-speed network technology to as it standard. The telephone companies filled this vacuum with ATM, although in October 1991,many computer vendors joined with the telephone companies to setup the ATM forum, an industry group that will guide the future of ATM.
ATM is designed to replace the entire circuit-switched telephone system with cell switching and be able to handle data and television as well.
ATM networks are connection-oriented. This Course provides summaries of ATM protocols, services, and operation. Figure 1 illustrates a private ATM network and a public ATM network carrying voice, video, and data traffic.
[pic]
In particular, this course focuses on how ATM devices efficiently process and transmit user traffic as discrete, fixed-length ATM cells at very high speeds.
ATM technology can be used in the following types of networking environments: • Private workgroup or enterprise networks • Large public networks • Hybrid combinations of both private and public networks
ATM technology is rapidly being implemented in these networking environments to enable the seamless interconnection of local area networks (LANs) and wide area networks (WANs). Furthermore, ATM technology enables the switching and transport of multiple traffic types at comparatively high speeds in a single switching fabric.
2- ATM Benefits:
ATM technology offers the following primary benefits:
•