SMC Networks 7908VOWBRA - annexe 7 Manual page 64

C
ONFIGURING THE
ATM Interface
1483 Bridging
Enter the settings provided by your ISP. In Bridging mode the Barricade
will act as a Bridge passing the IP addressing directly to the attached client
PC.
Parameter
VPI/VCI
Encapsulation
4-22
V ADSL R
OICE
Description
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.
Select 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
• LLC: Point-to-Point Protocol over ATM
OUTER
VirtualCircuit Multiplexer (null encapsulation)
allows only one protocol running per virtual
circuit with less overhead.
Logical Link Control allows multiple protocols
running over one virtual circuit (using slightly
more overhead).