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Cisco 4x InfiniBand Switch Module for IBM BladeCenter User Guide
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Chapter2 Installing and Configuring the Server Switch
Connecting Beyond BladeCenter
Connecting Beyond BladeCenter
To extend your InfiniBand fabric beyond your BladeCenter cluster, you must configure the priority of
the subnet manager on your Server Switch Module, then connect one or more of the external interfaces
on your Server Switch Module to an outside InfiniBand fabric.
The device with the highest subnet manager priority becomes the master subnet manager in the
InfiniBand network. To configure subnet manager priority, follow these steps:
Step1 Switch to Privileged Exec mode by entering the
enable
command.
Cisco BladeCenterH> enable
Cisco BladeCenterH#
Step2 Switch to Global Configuration mode by entering the
configure
command.
Cisco BladeCenterH# configure
Cisco BladeCenterH(config)#
Step3 Configure the priority of the subnet manager by entering the
ib sm
command with this information:
•
subnet-prefix
keyword
•Subnet prefix of the InfiniBand network to which the Server Switch belongs
•
priority
keyword
•Priority integer value of the subnet manager (1 is the lowest the priority)
Cisco BladeCenterH(config)# ib sm subnet-prefix fe:80:00:00:00:00:00:00 priority 1
Step4 Exit Global Configuration mode.
Cisco BladeCenterH(config)#exit
Cisco BladeCenterH#
Step5 Save the configuration by entering the copy running-config startup-config command.
Cisco BladeCenterH# copy running-config startup-config
Cisco BladeCenterH#
After you configure your subnet manager priority, connect your Server Switch Module to the outside
InfiniBand fabric. By default, the external interfaces on your Server Switch Module auto-negotiate speed
with the fabric.

Connecting InfiniBand Cables

To plug in an InfiniBand cable, push the connector into the interface until you hear/feel a click.
To remove a cable with a pull connector, grasp the connector with one hand and push it toward the port,
then pull the latch away from the port with your other hand and gently wiggle the connector away from
the port.