Cisco InfiniBand 4x User's Guide download pdf (Page 95)

Chapter 5. Configuring IP over InfiniBand

for use with Cisco switches

This chapter covers the details of implementing IP over InfiniBand (IPoIB) on BladeCenter

HS21 servers with the Cisco InfiniBand SDR dual port 4X Host Channel Adapter (HCA)

installed. It includes procedures for both Red Hat Enterprise Linux 4 U4 and Windows

Server® 2003 x64.

For the two servers (IPoIB nodes) to communicate using the IPoIB protocol, they first need to

be connected to the InfiniBand fabric through at least one of the ports. In the BladeCenter,

this is done by installing a Cisco 4X InfiniBand switch module in bay 7 or 9 (or both), and then

installing a blade server containing an InfiniBand HCA in the blade slots in the front of the

BladeCenter. This connects the servers to the InfiniBand fabric through the BladeCenter

midplane automatically.

In the examples in this chapter, the two IPoIB nodes are installed in the same BladeCenter H

chassis in blade bays 10 and 11. In Figure 5-1 on page 82, we use the Cisco SFS Element

Manager GUI to show the LED status is solid green for each host, which confirms that the two

blades are connected to the Cisco 4x SDR InfiniBand switch module in module bay 9 of the

chassis.

Note: This chapter specifically deals with an installation using the internal Cisco 4X

InfiniBand switch modules, which interconnect all HCAs in a given BladeCenter. If you are

using the InfiniBand Pass-thru Module, you will need to have some sort of external

InfiniBand switch to allow HCAs in the same BladeCenter to talk with each other.

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Cisco InfiniBand 4x User's Guide Page 95