Smc-networks SMC7904BRA Manuel d'utilisateur télécharger pdf (Page 54)

ETUP

IZARD

4-9

ISP use Bridging

Parameter Description

Management IP Address IP address of the device.

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).

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Smc-networks SMC7904BRA Manuel d'utilisateur Page 54