What is ATM Traffic Shaping?
A. A network operator needs to configure the end-device, router, in order to transmit ATM cells at a rate that conforms to the Quality of Service (QoS) that was purchased from an ATM Internet Service Provider (ISP). The service purchased or requested needs to be based on the type of service the user needs: • voice • video • data There are currently five service classes: • Available Bit Rate (ABR)—This is a service class where ATM switches make no guarantee of cell delivery, but do guarantee a minimum bit rate and that cell loss is kept as low as possible with the use of a feedback mechanism. The ABR service category is designed for VCs that carry file transfers and other bursty, non-real-time traffic that requires a minimum amount of bandwidth, specified via a minimum cell rate, in order to be available while the VC is configured and active. Refer to Understanding the Available Bit Rate (ABR) Service Category for ATM VCs for a configuration and more detailed information on ABR. • Const
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