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Basic frame relay configuration – Black Box LR1530A-EU-R3 User Manual

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Applications

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Basic Frame Relay Configuration

North American routers are configured to have frame relay enabled as

the default setting. With frame relay enabled, the router will

communicate over WAN connections to other frame relay units via

frame relay Permanent Virtual Circuits (PVC). From 1 to 40 PVC’s

may be defined to connect to other frame relay units. Before the

router can establish a PVC connection to another frame relay router, at

least one PVC must be defined. The router is pre-configured to query

the frame relay service to auto-learn the required parameters; they may

also be set manually.
The DLCI (Data Link Connection Identifier) number for the PVC is

assigned by the frame relay service provider. The PVC must be defined

on the physical link on the router. Refer to the following diagram that

shows three router units connected together with a PVC being

configured on each unit. The configuration of the PVCs within the

frame relay cloud is controlled by the frame relay service provider.

Figure 2 - 1 Frame Relay configuration

Frame Relay PVC
WAN connections

DLCI numbers
assigned for these
PVCs from the
frame relay provider.

51

52

55

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