This chapter describes how to create basic configurations for the adaptive source routing transparent (ASRT) bridge using the ASRT configuration commands. The chapter includes the "Basic Bridging Configuration Procedures".
If you need more information about the ASRT bridge configuration commands, refer to the "Configuring and Monitoring Bridging".
For an introduction to modification of ASRT bridging, see "NetBIOS Name and Byte Filters".
For examples of setting up NetBIOS filtering, see "NetBIOS Host Name and Byte Filtering Configuration Procedures".
For information on how to access the ASRT configuration environment, see "Getting Started" in the Software User's Guide.
The ASRT bridge enables you to perform basic bridging configurations using as few commands as possible. For example, using the enable bridge command begins this process by letting all correctly configured devices participate in transparent bridging. In addition, all default values for the spanning tree algorithm are enabled.
Bridging function beyond transparent bridging is then enabled on a "per-port" basis. When source routing is enabled, user input such as segment number, bridge number, and so on, is still required and must be entered beyond the basic commands that are explained.
The ASRT bridge supports bridging over combinations of one or more of the following interfaces:
| Note: | Refer to TCP/IP Passthru in the Nways Multiprotocol Access Services Software User's Guide for more information. |
The Ethernet and FDDI interfaces support transparent bridging, while token-ring interfaces support source routing and transparent bridging.
The serial line interface provides point-to-point connectivity for transparent and source routing traffic. It is important to note that a bridge configuration over a serial line should be consistent at both end points. This means that both end points should be configured as follows:
It is best if the serial line is configured for both bridging methods if mixed bridging is desired. Another suggested guideline is to make sure that bridging routers are consistent in their bridging method or in their routing of particular protocols.
The information immediately following outlines the initial steps required to enable the bridging options offered by the ASRT bridge. Details on making further configuration changes are covered in the command sections of this chapter. After completing these tasks, you must restart the router for the new configuration to take effect.
Use the following commands to enable transparent bridging:
Use the following commands to enable source-route bridging:
If source routing is the only feature you require, disable transparent bridging on the interfaces.
| Note: | You should be careful not to include interfaces that traditionally do not support source routing. For example, if transparent bridging is disabled and source routing is enabled on an Ethernet or FDDI port, the bridging facility is disabled for this port. |
Use the following commands to enable SR-TB bridging:
After completing any of the procedures just described, it is advised that you use the list bridge command to display the current bridge configuration. This lets you verify and check your configuration.
For more information on all of the commands just mentioned, refer to "Configuring and Monitoring Bridging".