User`s guide

Chapter 4 Broadband
ericom D1000 modem User’s Guide
36
4.3 The More Connections Screen
The Device allows you to configure more than one Internet access connection. To configure
additional Internet access connections click Network Setting > Broadband > More
Connections. The screen differs by the encapsulation you select. When you use the Broadband >
Internet Connection screen to set up Internet access, you are configuring the first WAN
connection.
MLD Proxy Select the version of MLD proxy (MLDv1 or MLDv2) to have the Device act as for this
connection. This allows the Device to get subscription information and maintain a
joined member list for each multicast group. It can reduce multicast traffic
significantly. Select None to turn off MLD proxy.
ATM QoS
ATM QoS Type Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or
data traffic. Select UBR With PCR (Unspecified Bit Rate) for applications that are
non-time sensitive, such as e-mail. Select Realtime VBR (real-time Variable Bit
Rate) type for applications with bursty connections that require closely controlled
delay and delay variation. Select Non Realtime VBR (non real-time Variable Bit
Rate) type for connections that do not require closely controlled delay and delay
variation.
Peak Cell Rate Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell
Rate (PCR). This is the maximum rate at which the sender can send cells. Type the
PCR here.
Sustain Cell Rate The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system
default is 0 cells/sec.
Maximum Burst
Size
Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent
at the peak rate. Type the MBS, which is less than 65535.
PPPoE Passthrough If encapsulation type is PPPoE, select Yes to enable PPPoE Passthrough. In addition to
the Device’s built-in PPPoE client, you can select this to allow hosts on the LAN to use
PPPoE client software on their computers to connect to the ISP via the device. Each
host can have a separate account and a public WAN IP address.
MTU
MTU The Maximum Transmission Unit (MTU) defines the size of the largest packet allowed
on an interface or connection. Enter the MTU in this field.
For ENET ENCAP, the MTU value is 1500.
For PPPoE, the MTU value is 1492.
For PPPoA and RFC 1483, the MTU is 65535.
Apply Click this to save your changes.
Cancel Click this to restore your previously saved settings.
Table 3 Network Setting > Broadband > Internet Connection (continued)
LABEL DESCRIPTION