Avaya Configuring Frame Relay Services User Manual download pdf (Page 32)

Configuring Frame Relay Services

2-8 114058 Rev. A

Figure 2-6. Example of a Bridged Network

In this example, the bridge receives data from Site A. If the bridge does not

recognize the destination address, it tries to direct trafﬁc through another bridge

port. However, without hybrid access mode conﬁgured, the Frame Relay bridge

port views the paths to Site A and Site B as the same path. Because the bridge

does not send out data on the same port from which it just received data, the

bridge does not direct the data to Site B. In this case, you should use hybrid access

mode.

If you deﬁne the PVCs in hybrid mode (refer to

Figure 2-5), each PVC acts as a

separate bridge port. This enables the bridge running on the Frame Relay interface

to view the trafﬁc from Site A as arriving on a different port than that of Site B.

When the bridge sends out data, it sends it out from all ports, including the port

that has access to Site B. Therefore, data from Site A can reach Site B.

See Chapter 3 for instructions on setting the Hybrid Mode parameter.

Router 1

Bridge port sees one

path to sites A and B

Router 2

Router 3

Frame

Relay

Network

FR0008A

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Avaya Configuring Frame Relay Services User Manual Page 32