Baytec RTA04W Bedienungsanleitung PDF herunterladen (Seite 26)

Fields in this page:

Field

Descr

iption

VPI

Virtual Path Identifier. This is read

only field and is selected on the

Select

column in the Current ATM VC Table.

VCI

Virtual Channel Identifier. This is read

only field and is selected on the

Select

column in the Current ATM VC Table. The VCI, together with VPI, is used to

identify the next destination of a cell as it passes through to the ATM switch.

QoS

Quality of Server, a characteristic of data transmission that measures how

accurately and how quickly a message or data is transferred from a source

host to a destination host over a network. The four QoS options are:

− UBR (Unspecified Bit Rate): When UBR is selected; the SCR

and MBS fields are disabled.

− CBR (Constant Bit Rate): When CBR is selected, the SCR and

MBS fields are disabled.

− nrt-VBR (non-real-time Variable Bit Rate): When nrt-VBR is

selected, the SCR and MBS fields are enabled.

− rt-VBR (real-time Variable Bit Rate): When rt-VBR is selected,

the SCR and MBS fields are enabled.

PCR

Peak Cell Rate, measured in cells/sec., is the cel

l rate which the source may

never exceed.

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Baytec RTA04W Bedienungsanleitung Seite 26