Acorp Sprinter W422G, Руководство пользователя

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4.3.2 ATM Setting
The page is for ATM PVC QoS parameters setting. The DSL device support 4 QoS
mode —CBR/rt-VBR/nrt-VBR/UBR.
Fields in this page:
Field Description
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