Bridging and Routing Concepts |
The AccessBuilder 500 uses FastConnect, its own protocol, to ensure the most efficient connection with other AccessBuilder units. However, if you are connecting to a different type of bridge/router the standard PPP communications protocol is required to establish the link. You can configure outgoing calls to use either FastConnect or PPP as required. The ISDN port on the AccessBuilder 500 autosenses the protocol being used on incoming calls and switches to the protocol necessary for that connection.
If you are using ISDN to connect to different networks, the two B channels can be used independently to connect to different networks at the same time.
Building a Larger Network
Large networks of interconnected LANs can be established by using multiple bridges as illustrated in Figure
The bridges build up their address tables. If the destination unit is not registered as being accessed via the bridge’s LAN interface, the frame will not be placed on LAN A. Therefore, frames passing between LAN B and LANs C or D will not impact the overall performance of the LAN.
