WAN

 

 

 

Parameter

Description

 

VPI/VCI

Virtual Path Identifier (VPI) and Virtual Circuit

 

 

 

Identifier (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

Specifies how to handle multiple protocols at the

 

 

ATM transport layer.

 

 

VC-MUX. Point to Point Protocol over

 

 

 

ATM Virtual Circuit 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

 

 

 

(uses slightly more overhead.)

Idle Time (Minute)

Enter the maximum idle time for the Internet

 

 

connection. After this time has been exceeded the

 

 

connection will be terminated.

ISP Name

Choose the ISP to whom this connection will

 

 

apply.

4-21

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SMC Networks SMC7404BRA EU manual 4-21, Parameter, Description, identifies the data channel within that virtual path