Avaya Configuring Frame Relay Services User Manual download pdf (Page 25)

2-1

Chapter 2

Implementation Notes

This chapter provides information about the Bay Networks implementation of

Frame Relay.

Access Modes for Frame Relay

An access mode deﬁnes how the router views the PVC interface connection to the

Frame Relay network. You can enable each Frame Relay PVC to function in one

of three access modes:

group access, direct access,

hybrid access.

PVCs that

are part of the same Frame Relay interface can use different modes. This section

describes each access mode.

To understand the access modes, you need to know whether the network is fully

meshed or non-fully meshed (Figure 2-1).

• In a

fully meshed

network, PVCs exist between each pair of nodes in the

network.

• In a

non-fully meshed

network, PVCs exist only between nodes that need to

communicate.

The type of network conﬁguration determines the best access mode for your

application.

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Avaya Configuring Frame Relay Services User Manual Page 25