ZyXEL P-660HN-51 User Guide - Page 78

Network > WAN > Internet Access Setup: Advanced Setup

Page 78 highlights

Chapter 6 WAN Setup The following table describes the labels in this screen. Table 17 Network > WAN > Internet Access Setup: Advanced Setup LABEL DESCRIPTION RIP & Multicast Setup This section is not available when you configure the ZyXEL Device to be in bridge mode. RIP Direction RIP (Routing Information Protocol) allows a router to exchange routing information with other routers. Use this field to control how much routing information the ZyXEL Device sends and receives on the subnet. RIP Version Select the RIP direction from None, Both, In Only and Out Only. This field is not configurable if you select None in the RIP Direction field. Multicast Select the RIP version from RIP-1, RIP-2B and RIP-2M. Multicast packets are sent to a group of computers on the LAN and are an alternative to unicast packets (packets sent to one computer) and broadcast packets (packets sent to every computer). Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to establish membership in a multicast group. The ZyXEL Device supports IGMP-v1, IGMP-v2 and IGMP-v3. Select None to disable it. ATM QoS ATM QoS Type Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data traffic. Select UBR (Unspecified Bit Rate) for applications that are non-time sensitive, such as e-mail. Select rtVBR (real-time Variable Bit Rate) type for applications with bursty connections that require closely controlled delay and delay variation. Select nrtVBR (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. 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. Back For PPPoA and RFC 1483, the MTU is 65535. Click this to return to the previous screen without saving. 78 P-660HN-TxA User's Guide

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Chapter 6 WAN Setup
P-660HN-TxA User’s Guide
78
The following table describes the labels in this screen.
Table 17
Network > WAN > Internet Access Setup: Advanced Setup
LABEL
DESCRIPTION
RIP & Multicast
Setup
This section is not available when you configure the ZyXEL Device to
be in bridge mode.
RIP Direction
RIP (Routing Information Protocol) allows a router to exchange
routing information with other routers. Use this field to control how
much routing information the ZyXEL Device sends and receives on the
subnet.
Select the RIP direction from
None
,
Both
,
In Only
and
Out Only
.
RIP Version
This field is not configurable if you select
None
in the
RIP Direction
field.
Select the RIP version from
RIP-1
,
RIP-2B
and
RIP-2M
.
Multicast
Multicast packets are sent to a group of computers on the LAN and are
an alternative to unicast packets (packets sent to one computer) and
broadcast packets (packets sent to every computer).
Internet Group Multicast Protocol (IGMP) is a network-layer protocol
used to establish membership in a multicast group. The ZyXEL Device
supports
IGMP-v1
,
IGMP-v2
and
IGMP-v3
. Select
None
to disable
it.
ATM QoS
ATM QoS Type
Select
CBR
(Continuous Bit Rate) to specify fixed (always-on)
bandwidth for voice or data traffic. Select
UBR
(Unspecified Bit Rate)
for applications that are non-time sensitive, such as e-mail. Select
rtVBR
(real-time Variable Bit Rate) type for applications with bursty
connections that require closely controlled delay and delay variation.
Select
nrtVBR
(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.
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.
Back
Click this to return to the previous screen without saving.