PVC Network

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Use the following representative ATM network as an example to configure your network.

Within the Figure 1 figure, one logical IP subnet is represented by dashed lines from each host to the switch. The other IP subnet is represented by solid lines from each host to the switch.

Figure 1. Representative ATM network
Representative ATM network
This illustration depicts an ATM network laid out in a typical star topography. In the center of the star is the ATM switch. Numbered IP hosts are branched off of the switch as are links to other ATM switches and one ATM gateway box and adapter.

The following Representative Host Configuration table indicates how hosts H3 and H4 are configured to communicate with a gateway and with each host on its own logical IP subnet.

Table 1. Representative host configuration. Representative host configuration
Network Interface Driver VPI:VCI Comment
at0 0:40 Connection to 128.10.1.5 (gateway)
at0 0:42 Connection to 128.10.1.2
at0 0:43 Connection to 128.10.1.3
at0 0:50 Connection to 128.10.2.5 (gateway)
at0 0:52 Connection to 128.10.2.2
at0 0:53 Connection to 128.10.2.3
at0 0:54 Connection to 128.10.2.4

To reach hosts on another logical IP subnet, only a VPI:VCI connection to the gateway needs to be created. (The VPI:VCIs are for illustration purposes only.)

The ATM gateway box has one ATM with two IP addresses sharing the same physical cable.