Traditional Adapter Mode

^{IBM-AUSTRIA - PC-HW-Support 30 Aug 1999}

Traditional Adapter Mode

Traditional Adapter Mode

This illustration shows:

A server with two Quad-BT PeerMaster adapter configured in the Traditional Adapter mode.
The network protocol views each LAN segment as a separate subnet with its own network number. Clients on all ports have direct access to the server.
NOTE: The same principles apply to Quad-B2 configurations, however, concentrator hubs are not required for 10Base2 operation.
A configuration of eight separate network numbers.
Curved arrows illustrating the basic flow of cross-subnet traffic.
The server-based router accepts and forwards all frames that require routing between subnets.
Software layers illustrated above the adapters indicating software that is required to route traffic internally, running on the server.

Cross-subnet traffic, such as traffic from Net 1 to Net 2 , must be forwarded by a router. The router can be internal to the server or an external stand-alone device.

The advantage of the Traditional Adapter mode is that a router restricts cross-subnet traffic to only those data packets that are uniquely addressed to the target network. The disadvantage of this mode is that server responsiveness might be heavily impaired due to the burden of packet routing. This mode should be used only when little or no cross-subnet traffic is expected.

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