Cisco InfiniBand 4x User's Guide download pdf (Page 136)

122 Implementing Cisco InfiniBand on IBM BladeCenter

You can find more information about understanding and configuring the Ethernet gateway

module in documentation that is available at the following links:

򐂰 Cisco SFS 3000 series documentation home

http://www.cisco.com/en/US/products/ps6422/index.html

򐂰 Cisco SFS InfiniBand Ethernet Gateway User Guide

http://www.cisco.com/en/US/products/ps6422/products_user_guide_list.html

򐂰 Cisco SFS InfiniBand Redundancy Configuration Guide

http://www.cisco.com/en/US/products/ps6422/products_installation_and_configurat

ion_guides_list.html

򐂰 SFS 7000 Series Command Reference (covers 3000 series also)

http://www.cisco.com/en/US/products/ps6421/products_command_reference_book09186

a008070c2eb.html

򐂰 SFS 3000 Specific Command Reference

http://www.cisco.com/application/pdf/en/us/guest/products/ps6421/c2001/ccmigrat

ion_09186a00808669e2.pdf

7.2 Client information

Before configuring the Ethernet gateway, it is usually best to configure a couple of clients for

IP over InfiniBand access. By configuring two IP over InfiniBand clients, you can use these to

test IPoIB on the InfiniBand fabric, irrespective of the gateway (making sure they can ping

each other). This ensures the clients are configured correctly and will help to minimize

troubleshooting if you have issues configuring the gateway.

It is also assumed the client will have a default gateway configured, that points to the IP

address on the Ethernet device that is acting as the default route for non-local traffic. If a

default gateway is not configured (and no static routes exist), then the client will usually be

unable to connect to IP devices in different IP subnets.

For this section, we tested only Red Hat Linux clients. It is also possible to use other versions

of Linux or Windows, but we do not cover other versions in this section.

This section uses clients with the OpenFabrics Enterprise Distribution (OFED) drivers. For

information about installing and configuring the OFED drivers, see 5.1, “Configuring IPoIB on

a Linux host” on page 82.

You can find more information and download the OFED driver from the following link

(requires a CCO ID to access):

http://www.cisco.com/cgi-bin/tablebuild.pl/sfs-linux

Tip: To permit an InfiniBand client to talk with IP subnets other than their own on the

Ethernet network, you must have two items:

򐂰 Either a default gateway or static routes added directly to the client

򐂰 Either a default gateway or static routes assigned within the bridge-group on the

Ethernet gateway module in the 3012

It is very easy to forget to have one or the other, and thus be unable to ping outside the

clients own subnet.

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Cisco InfiniBand 4x User's Guide Page 136