MicroNet Technology SP3367N - Manual (Page 25)

ATM QoS
CBR (Constant Bit Rate) – This class is used for emulating
circuit switching. The cell rate is constant with time. Select
CBR to specify fixed (always on) bandwidth for voice or data
traffic.
UBR (Unspecified Bit Rate) – Select UBR for applications
that are non-time sensitive, such as e-mail.
rtVBR (real time Variable Bit Rate) – This class is similar to
nrtVBR but is designed for applications that are sensitive to
cell-delay variation. Examples for real-time VBR are voice
with speech activity detection (SAD) and interactive
compressed video.
nrtVBR (non-real time Variable Bit Rate) – This class
allows users to send traffic at a rate that varies with time
depending on the availability of user information. Statistical
multiplexing is provided to make optimum use of network
resources. Multimedia e-mail is an example of nrtVBR.
PCR
Divide the DSL line rate (bps) by 424 (the size of an ATM cell)
to find the PCR (Peak Cell Rate). This is the maximum rate at
which the sender can send cells.
SCR
SCR (Sustain Cell Rate) is the average rate, as measured
over a long interval, in the order of the connection lifetime.
MBS
MBS (Maximum Burst Size) refers to the maximum number of
cells that can be sent at the peak rate. Type the MBS, which
is less than 65535.
Encapsulation
The router can be connected to your service provider in any of the following ways.
Parameter Description
Dynamic IP Address ISP will automatically provide an IP address.
Static IP Address ISP has given users an IP address already.
PPPoE/PPPoA
PPPoE (PPP over Ethernet) and PPPoA (PPP over ATM) are
common connection methods used for xDSL.
Bridge Mode
Device will act as modem only equipment to prevent conflict
with other routers.
Dynamic IP Address/Static IP Address/PPPoE/PPPoA/Bridge Mode
After you have selected the ISP Type, this web page will be varied depending on the
ISP Type you select. Please refer to the following table for the explanation of each
parameter.
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