What is Advantages and Disadvantages of ATM

Advantages and Disadvantages of ATM

Advantages Of ATM :

• ATM Advantages
  
• ATM supports voice, video and data allowing multimedia and mixed services over a
• single network.
  
• High evolution potential, works with existing, legacy technologies
  
• Provides the best multiple service support
  
• Supports delay close to that of dedicated services
  
• Supports the broadest range of burstiness, delay tolerance and loss performance through the implementation of multiple QoS classes
  
• Provides the capability to support both connection-oriented and connectionless traffic using AALs
  
• Able to use all common physical transmission paths like SONET.
  
• Cable can be twisted-pair, coaxial or fiber-optic
  
• Ability to connect LAN to WAN
  
• Legacy LAN emulation
  
• Efficient bandwidth use by statistical multiplexing
  
• Scalability
  
• Higher aggregate bandwidth
  
• High speed Mbps and possibly Gbps

ATM disadvantages

• Flexible to efficiency’s expense, at present, for any one application it is usually possible to find a more optimized technology
  
• Cost, although it will decrease with time
  
• New customer premises hardware and software are required
  Competition from other technologies -100 Mbps FDDI, 100 Mbps Ethernet and fast Ethernet
  
• Presently the applications that can benefit from ATM such as multimedia are rare
  The wait, with all the promise of ATM’s capabilities many details are still in the standards process

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