ZyXEL Communications VSG1432-B101 - V1.10, Manual

Page: 84 / 408

Chapter 6 Broadband
VSG1432-B101 Series User’s Guide
84
The following table describes the labels in this screen.
Table 8 Broadband: Add/Edit: Bridge Mode
LABEL DESCRIPTION
General
Active
Select this to activate the WAN configuration settings.
Name Specify a descriptive name of up to 15 alphanumeric characters for this
connection.
Type Select whether it is a VDSL, ADSL, or Ethernet connection.
Mode Select Routing (default) from the drop-down list box if your ISP give
you one IP address only and you want multiple computers to share an
Internet account.
Select Bridge when your ISP provides you more than one IP address
and you want the connected computers to get individual IP address
from ISP’s DHCP server directly. If you select
Bridge , you cannot use
routing functions, such as Firewall, DHCP server and NAT on traffic
from the selected LAN port(s).
ATM PVC Configuration
VPI
The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local
management of ATM traffic). Enter the VCI assigned to you.
DSL Link Type This field is not editable. EoA (Ethernet over ATM) uses an Ethernet
header in the packet, so that you can have multiple services/
connections over one PVC. You can set each connection to have its own
MAC address or all connections share one MAC address but use
different VLAN IDs for different services.
Encapsulation
Mode Select the method of multiplexing used by your ISP from the drop-
down list box. Choices are:
• LLC/SNAP-BRIDGING: In LCC encapsulation, bridged PDUs are
encapsulated by identifying the type of the bridged media in the
SNAP header.
• VC/MUX: In VC multiplexing, each protocol is carried on a single
ATM virtual circuit (VC). To transport multiple protocols, the ZyXEL
Device needs separate VCs. There is a binding between a VC and
the type of the network protocol carried on the VC. This reduces
payload overhead since there is no need to carry protocol
information in each Protocol Data Unit (PDU) payload.
Service
Category Select UBR Without PCR or UBR With PCR for applications that are
non-time sensitive, such as e-mail.
Select CBR (Continuous Bit Rate) to specify fixed (always-on)
bandwidth for voice or data traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for
connections that do not require closely controlled delay and delay
variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with
bursty connections that require closely controlled delay and delay
variation.