Enterasys brim-f6 Benutzerhandbuch

Ethernet Workgroup Design

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Ethernet

Figure 6-5. FDDI Backbone Internetworking

The main difference between the small office and the remote office is that a 
provision must be made to accommodate a connection to a different networking 
technology. In the case of Cabletron Systems workgroup products, this process 
has been simplified by the inclusion of BRIM capabilities into the MicroMMAC 
stackable bases and the ESX and NBR Ethernet switches.

Essentially, the design process for the remote office is the same as that for the 
small office as discussed previously. The remote office requires an additional 
series of steps related to the use of BRIMs. Once the localized workgroup portions 
of the network have been finalized, the BRIM selection process can begin.

As most remote office environments will deal with BRIM-capable standalone or 
stackable devices, the selection of the correct BRIM is an essential portion of the 
network design. There are several BRIM models available for a number of 
different internetworking needs. These BRIM types are listed in Table 4-2, found 
in Chapter 4, PIMs and BRIMs.

For fully up-to-date information regarding BRIM interoperability, contact your 
Cabletron Systems Sales Representative with specific questions.

Several BRIMs require PIMs in order that they support connections to the proper 
networking media. The type of PIM that must be specified is dependent upon the 
type of BRIM that is being customized. BRIMs with FDDI connections require 
FPIMs, BRIMs with Ethernet connections require EPIMs, and so on. 

Table 4-1, found in Chapter 4, provides the vital information regarding all 
available PIMs.

FDDI

Backbone

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