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Chapter 3
Configuring the Hub
After you have installed the hub and its modules and physically connected it to
the ring, you can configure the hub to operate in your network environment.
This chapter discusses the following topics:
Attachment Options
The LinkBuilder FDDI Workgroup Hub supports four types of standard
configurations:
NOTE: 3Com uses the standard acronyms shown above but calls the
concentrator a hub.
Each type of configuration is discussed in this section. (Refer to the section
"Configuring Modules" later in this chapter for information about using the set
attach command to configure the hub.)
Attachment options supported by the hub
Default configuration of the hub and its modules
Console command access modes
Rules for media module port connections
Dual attachment concentrator (DAC)
Single attachment concentrator (SAC)
Null attachment concentrator (NAC)
Dual homing (DH)
Configuring the Hub
3-1
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