G.shdsl Router User Manual
WAN
The SHDSL router supports up to 8 PVCs. WAN 1 was configured via
BASIC except QoS. If you want to setup other PVCs, 2 to 7, the parameters
are setup in WAN. In other words, you must apply two or more Internet
Services with ISPs otherwise you do not need to setup WAN.
The WAN Number 1 will be the
parameters setup in Basic Setup. If
you want to setup another PVC,
you can configure them in WAN 2
to WAN 8.
Enter the parameters.
If WAN protocol is PPPoA or
PPPoE with dynamic IP, leave the
default WAN IP address and
Subnet Mask as default setting.
The system will ignore the IP
address and Subnet mask
information by deleting or leaving
blank the items that would cause
system error.
If the WAN protocol is IPoA or EoA, leave the ISP parameters as default setting. The system will
ingore the information by deleting or leaving blank the items that would cause system error.
QoS (Quality of Service): The Traffic Management Specification V4.0 defines ATM service
categories that describe both the traffic transmitted by users onto a network as well as the Quailty
of Service that the network needs to provide for that traffic.
UBR (Unspecified Bit Rate) is the simplest service provided by ATM networks. There is no
guarantee of anything. It is a primary service used for transferring Internet traffic over the ATM
network.
CBR (Constant Bit Rate) is used by connections that requires a static amount of bandwidth that is
available during the connection life time. This bandwidth is characterized by Peak Cell Rate. Based
on the PCR of the CBR traffic, specific cell slots are assigned for the VC in the schedule table. The
ATM always sends a single cell during the CBR connection’s assigned cell slot.
VBR-rt (Varible Bit Rate real-time) is intended for real-time applications, such as compressed voice
over IP and video conferencing, that require tightly constrained delays and delay variation. VBR-rt
is characterized by a peak cell rate (PCR), substained cell rate (SCR), and maximun burst rate
(MBR).
VBR-nrt (Varible Bit Rate non-real-time)
PCR (Peak Cell Rate) in kbps: The maximum rate at which you expect to transmit data, voice and
video. Consider PCR and MBS as a means of reducing lantency, not increasing bandwidth. The
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