Техническая Спецификация для Cisco Cisco UCS C250 M1 Extended-Memory Rack-Mount Server

This section explains the connectivity between the Fabric Interconnects (FIs) and Fabric Extenders (FEX). 
The Fabric Extenders are extensions of the Fabric Interconnects and act as remote line cards to form a 
distributed modular fabric system. The fabric extension is accomplished through the FEX fabric link, which 
is the connection between the Fabric Interconnect and the FEX.

A minimum of one connection between the FI and FEX is required to provide server connectivity. Depending 
on the FEX model, subsequent connections can be up to eight links, which provides added bandwidth to the 
servers.

For the 5100 blade chassis series, the Fabric Extender modules (up to two) plug into the back of the UCS 
5108 series blade server chassis. A midplane connects the blade servers to the Fabric Extenders. The 5108 
chassis accommodates the following FEXs:

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Cisco UCS 2208XP

■

Cisco UCS 2204XP

 shows how the FEX modules in the blade chassis connect to the FIs.

NOTE:  The Cisco UCS 2304 Fabric Extender is not compatible with the Cisco UCS 
6200 Fabric Interconnect series

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Fabric Interconnect A

Fabric Interconnect B

Fabric Extender 1

Fabric Extender 2