AirLive ARM-104 v3 User Manual

Page 52

AirLive ARM-104_v3 ADSL2/2+ Router

Static Settings:

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Encapsulation: The technique used by layered protocols in which a layer adds header

information to the protocol data unit (PDU) from the layer above. As an example, in Internet

terminology, a packet would contain a header from the physical layer, followed by a header

from the network layer (IP), followed by a header from the transport layer (TCP), followed

by the application protocol data.

Two options are provided: Logical Link Control (LLC) and Virtual Channel (VC).

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IP Address: Enter the IP Address provided by your ISP.

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Mask: Enter the Subnet mask specified by your ISP.

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Default Gateway: Enter the Default Gateway as specified by the ISP.

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DNS: Up to three Domain Name Server (DNS) addresses can also be specified.

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Mode: For static configuration, you can also select a bridge connection or a routed

connection. Since a Static IP address is typically used to host WEB servers, Bridged

connection is usual however Routed is provided also. Check with ISP for confirmation.

PVC Settings:

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PVC: This field allows you to choose the specific PVC for the PPP session.

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VPI: Virtual Path Identifier is a virtual path used for cell routing that is identified by an eight bit

field in the ATM cell header. The VPI field specifies this eight bit identifier for routing.

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VCI: A Virtual Channel Identifier is a virtual channel that is identified by a unique numerical

tag that is defined by a 16-bit field in the ATM cell header. The purpose of the virtual channel

is to identify where the cell should travel. The VCI field specifies this 16 bit numerical tag that

determines the destination.

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QoS: Select the Quality of Service (QoS) type. If in doubt leave as default.

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PCR: Peak Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the

rate cells per second that the source device may never exceed. Available only when VBR

QoS is chosen.

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SCR: Security Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the

security cell transmitted per second.

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MBS: Maximum Burst Size. A term used in ATM (Asynchronous Transfer Mode) to specify

the maximum number of cells which can be transmitted at the contracted PCR (Peak Cell

Rate). Available only when VBR QoS is chosen.