CONFIGURING THE VOICE ADSL ROUTER

ATM Interface

1483 Bridging

Enter the Bridging settings provided by your ISP.

Parameter

Description

 

 

VPI/VCI

Data flows are broken up into fixed length cells,

 

each of which contains a Virtual Path Identifier

 

(VPI) that identifies the path between two nodes,

 

and a Virtual Circuit Identifier (VCI) that identifies

 

the data channel within that virtual path. Each

 

virtual circuit maintains a constant flow of cells

 

between the two end points. When there is no data

 

to transmit, empty cells are sent. When data needs

 

to be transmitted, it is immediately inserted into

 

the cell flows.

Encapsulation

Shows the packet encapsulation type.

 

Packet encapsulation specifies how to handle

 

multiple protocols at the ATM transport layer.

 

VC-MUX: Point-to-Point Protocol over ATM

 

VirtualCircuit Multiplexer (null encapsulation)

 

allows only one protocol running per virtual

 

circuit with less overhead.

 

• LLC: Point-to-Point Protocol over ATM

 

Logical Link Control allows multiple protocols

 

running over one virtual circuit (using slightly

 

more overhead).

QoS Class

ATM QoS classes including CBR, UBR and VBR

PCR/SCR/MBS

QoS Parameters - PCR (Peak Cell Rate), SCR

 

(Sustainable Cell Rate) and MBS (Maximum Burst

 

Size) are configurable.

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SMC Networks SMC7908VoWBRA manual ATM Interface, Pcr/Scr/Mbs