InfiniBand on Redhat/Centos Linux.

## install necessary packages
yum install ibutils.x86_64 openib.noarch opensm.x86_64 infiniband-diags.x86_64

## client
yum install ibutils.x86_64 openib.noarch infiniband-diags.x86_64

## start services
service openibd start
service opensmd start

## configure interface


DEVICE=ib0     
TYPE=Infiniband     
BOOTPROTO=static     
BROADCAST=192.168.0.255     
IPADDR=192.168.0.1     
NETMASK=255.255.255.0 
NETWORK=192.168.0.0     
ONBOOT=yes



net.ipv4.conf.all.arp_ignore=1
net.ipv4.conf.ib0.arp_ignore=1
net.ipv4.conf.ib1.arp_ignore=1

references:
HOWTO: Getting Started with InfiniBand on Redhat/Centos Linux.