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Layer2 Interface
A WAN (Wide Area Network) is a computer network that covers a broad geographical area (eg.
Internet) that is used to connect LAN and other types of network systems.
ATM Interface
The following is the interface listing table.
Click
Add
to add WAN interface.
VCI/VPI:
enter the VCI/VPI from your ISP.
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Select DSL Link Type:
select the link type (protocol), EOA, PPPoA, IPoA.
Select Connection Mode:
L
Default Mode:
this mode only allows single service over one connection.
L
VLAN MUX Mode:
this mode allows multiple services over one PVC.
The two modes can be different in WAN service configuration. And PPPoA and IPoA do not use
Ethernet frames for data transfer so they cannot work with VLAN Mux feature. Thus,
Connection
Mode
Parameter will be hided if you select PPPoA or IPoA in Link Type.
Encapsulation Mode:
select the encapsulation mode from the drop-down menu according to the
link Type.
Service Category:
select the service category from the drop-down menu to determine your service
category.
L
UBR without PCR: UBR(Unspecified Bit Rate), PCR(Peak cell Rate)
UBR is a kind of QoS, which doesn’t provide assurance about the cell latency, the bit loss rate etc,
it is a best-effort service.
Select IP QoS Schedule Algorithm:
select the Schedule Algorithm, SP(Strict Priority), always
sends the packets with the highest priority, WFQ(Weighted Fair Queuing), an automatically
bandwidth adjusting method, sharing the available bandwidth when congestion happens, the
bandwidth is assigned according to the priority and the weight value. Turn to the
Quality of Service
>
Queue Config
section for more information.
Precedence of the default queue:
default 8(lowest)
Weight Value of default queue:
enter the value, 1-63, the highest is 63.
MPAAL Group Precedence:
select the precedence identification, 1-8, the highest is 1.
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L
UBR with PCR/ CBR(Constant Bit Rate)
UBR is a kind of service providing constant rate service, is idea for timely and fixed bandwidth
needed service.
Peak Cell Rate:
enter Peak Cell Rate.
L
Non Realtime VBR/ Realtime VBR(Variable Bit Rate)
VBR is a kind of service providing some assurance about latency and bit loss rate and is often
associated with video and time sensitive service. NR-VBR allows more time delay to R-VBR.
Enter Peak Cell Rate, Sustainable Cell Rate and Maximum Burst Rate.
Click
Apply
to apply the WAN interface.
Check the remove checkbox, then press
Remove
to delete it only if this interface are not used by a
WAN Service, if it is used by a WAN service, first remove the WAN service, then turn back to remove
the interface.
Don’t feel confused, it will remind you by the following prompt window.
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Now follow the above steps, we set two ATM WAN interfaces for future illustration, one is of
DefaultMode, and one is of VlanMuxMode.
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WAN Service
WAN Service allows you to configure one or more services over one interface (connection). The
following is the WAN Service listing table. Your configured WAN service will be listed here.
Default
Connection
mode
Select the interface which is a Default
mode connection configured in WAN Service, here for
example, in the following, atm0/(0_8_35) is a Default
mode connection.
Click
Add
to create one WAN service.
Select the interface, the listed interfaces are the one you configured in WAN interface section. Click
Next
to further configure.

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