Overview
Asynchronous Transfer Mode (ATM) Service provides technology for data, video, voice and multimedia
networking. ATM service is based on a fixed-length 53-byte cell that includes a five byte header that support
high-speed data applications, while achieving the minimum delay and delay-variability required for video and
voice applications, all on a single infrastructure. ATM is a statistically multiplexed protocol with
sophisticated routing capabilities that supports rapidly changing bandwidth demands (bursty traffic),
allows any-to-any end-point connectivity, and results in better network facility utilization. ATM is a
fundamental technology for high-speed, multimedia applications in local and wide area environments.
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Service Features
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- Permanent Virtual Connection service.
- Switched Virtual Connection service
- Constant Bit Rate (CBR) and Variable Bit Rate - Non Real Time (VBR-NRT) classes of service capabilities for PVC and SVC service; Unspecified
- Sustained bursting capabilities
- 7x24 Network Operations Centers and Customer Network Management options (SNMP-based management).
- Frame Relay/ATM interoperability via dial access at speeds up to 14.4 Kbps and dedicated access from 56 Kbps to 1.5 Mbps.
- Direct ATM access at speeds from 1.5 Mbps, 45 Mbps and OC-3.
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ATM Applications
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- Client Server and LAN interconnect
- High-speed file transfer.
- Electronic mail with file transfer.
- Distributed or Centralized servers.
- Video production, distribution and broadcasting.
- Telemedicine
- Electronic bonding.
- Workgroup collaboration and video conferencing.
- Research collaboration.
- Geophysical modeling/imaging.
- Multimedia desktop teleconferencing.
- Computer generated animation.
- Scientific analysis of computer simulation of real world events.
- Data warehousing and vaulting, disaster recovery.
- Aggregate data applications requiring speeds of 45 Mbps.
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