System Configurations
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The following figure illustrates the Grid Director 4700 with HyperScale Fabric Board (spine)
InfiniBand internal switching topology.
Figure 6: Grid Director 4700 HyperScale Spine Switching Topology
The Grid Director 4700 topology feature eighteen symmetrical Line Boards (sLB) and nine
interconnect Fabric Boards (sFB).
Each Line Board (sLB-4018) includes one 36-port 40Gb/s InfiniBand switch chip.
Each Fabric Board (sFB-4700) includes one 36-port 40Gb/s InfiniBand switch chip.
Each HyperScale Fabric Board (sFB-4700-2X) includes two 36-port 40Gb/s InfiniBand
switch chips.
The LEDs on the Fabric Board modules indicate proper connectivity and traffic flow between
each line board and the respective fabric board.