HP 6212 Manual do Utilizador descarregar pdf (Página 61)

6212-A2-GB20-00 May 2004 61

Service Type:

cbr (Constant Bit

Rate)

rtvbr (Real Time

Variable Bit Rate)

Nrtvbr (Non-Real

Time Variable Bit

Rate)

Ubr (Unspecified Bit

Rate)

Supports real-time applications requiring a fixed amount

of bandwidth. The applications produce data at regular

intervals such as a video stream. The user can specify how

much bandwidth they wish to reserve.

Supports time-sensitive applications such as voice. In

these applications the rate at which cells arrive are varied.

Supports applications that have no constraints on delay

and delay variation, but still have variable-rate and bursty

traffic characteristics.

Best effort service that does not require tightly constrained

delay and delay variation. UBR provides no specific quality

of service or guaranteed throughput.

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HP 6212 Manual do Utilizador Página 61