Connecting to a Backbone Ring (8238)

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

Connecting to a Backbone Ring (8238)

Connecting to a Backbone Ring

You can use the lobe port on an IBM 8238 Fiber or Copper RI/RO Feature to attach the stack to a backbone ring. The below illustration show physical and logical diagramsof the backbone ring attachement. The physical diagram shows a Fiber RI/RO Feature. However, you can connect the Copper RI/RO Feature using the same method.

To attach the hub stack to a backbone ring:

Use the SET HUB RIRO_MODE ISOLATED mgmt. command to isolate the RI/RO Feature from the main stack ring (token_ring_1). For example:
ONsemble> set hub 1 riro_mode isolated
Make RI/RO connections as described in Making Fiber RI/RO Connections and Making Copper RI/RO Connections
Connect the lobe port on the RI/RO Feature to a port on a Token-Ring-to-Token-Ring bridge.
Connect a lobe port on the Token Ring Hub to a port on the Token-Ring-to-Token-Ring bridge.
Configure the Token-Ring-to-Token-Ring bridge to bridge traffic between the two bridge ports you
used in steps 3 and 4.

For more information on:

Management commands, refer to the IBM 8238 Token Ring Stackable Hub Management Guide.
Backbone ring configuration, refer to the IBM 8238 Token Ring Stackable Hub Installation and Operation Guide

More INFORMATION / HELP is available at the IBM-HelpCenter

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