Avaya Configuring Frame Relay Services Bedienungsanleitung PDF herunterladen (Seite 60)

Configuring Frame Relay Services

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308624-14.10 Rev 01

Figure 1-13. PVC Pass-Through

Figure 1-13 shows a router with an Ethernet interface and two frame relay

interfaces. The interface to the frame relay network (on the right) is a DTE. The

interface to the FRAD (on the left) is a DCE. The router delivers all IP frames

inbound on DLCI 50 to the IP interface. It also delivers all IP frames inbound on

DLCI 30 to the IP interface. The router delivers all other traffic inbound on DLCI

30 via the PVC pass-through system to DLCI 20, which transmits the data to the

FRAD. All data inbound on DLCI 20 is delivered via the PVC pass-through

system to DLCI 30, which transmits the data to the frame relay network.

PVC pass-through works with both leased line and dial-on-demand interfaces. It

works with Nortel Networks data compression, congestion control, and traffic

shaping. It does not work with data encryption, which requires a direct mode

PVC.

Frame Relay Dial Services

Frame relay works with Nortel Networks dial-on-demand and dial backup

services. For more information about dial services, see Configuring Dial Services.

Synchronous Line Configuration for Frame Relay

If you enable frame relay on a circuit, Site Manager automatically sets the

following synchronous line parameters (Table 1-8)

FRAD

DTE

DCE

DCEs

Router

IP router

DLCI 50

DLCI 30

Frame

relay

network

DLCI 20

FR0016A

PVC pass-through

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Avaya Configuring Frame Relay Services Bedienungsanleitung Seite 60