User Manual of VDR-301N
44
5.3.3 ATM
Choose Setup > ATM and the page is displayed below. On this page, you can configure the parameters of the
ATM, including QoS, PCR, CDVT, SCR and MBS.
Figure 5-23 ATM
The following table describes the parameters:
Field Description
VPI
Virtual Path Identifier. This is read-only field and is selected on the
Select column of 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
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 cell rate which the source
To Next Page
Loading...
