2/4 Port Ethernet Expansion Card (CFFh) for IBM BladeCenter
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In BladeCenter S, only two ports are used on the card and both of these two ports are routed to bay 2 as
shown in Figure 4.
Figure 4. IBM BladeCenter S I/O topology showing the I/O paths from CFFh expansion cards
Popular configurations
This section shows two configurations that use the 2/4 Port Ethernet Expansion Card (CFFh).
BladeCenter H configuration
The 2/4 Port Ethernet Expansion Card (CFFh) and the BladeCenter H chassis makes it possible to supply
eight Gigabit Ethernet ports to every BladeCenter server. Figure 5 shows the eight Ethernet switch
modules, four of which are connected to the 2/4 Port Ethernet Expansion Card (CFFh). The other four
connections are via the onboard Ethernet controller and the CIOv or CFFv expansion card. All
connections between the cards and the switch modules are internal to the chassis. No extra cabling is
needed.
