Baytec RTA04W, User Manual

Page: 26 / 64

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
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 may
never exceed.