GLYPH<SM590000> Two host name suffixes each ( eth0  with - port0ip1  and - port0ip2 ;  eth1  with - port1ip1  and  - port1ip2): 1. Set the attributes of the  nics  table in the node group by running the  chdef  command: 2. Verify the attributes by running the  lsdef  command. They are represented with  per-interface subattributes (that is,  <attribute>.<interface>=<values-for-the-interface> ). 3. Verify that the attributes that are based on regular expressions have the correct values on  a particular node by running the  lsdef  command: 4. Update the configuration files for the host table, DNS server, and DHCP server by running  the  makehosts ,  makedns , and  makedhcp  commands: 96  IBM High-Performance Computing Insights with IBM Power System AC922 Clustered Solution  $ makehosts ac922 $ cat /etc/hosts 127.0.0.1  localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1  localhost localhost.localdomain localhost6 localhost6.localdomain6 10.1.0.1 xcat-mn.xcat-cluster xcat-mn 10.1.1.1 p9r1n1 p9r1n1.xcat-cluster 10.10.1.1 p9r1n1-ib p9r1n1-ib.xcat-cluster lsdef --nics p9r1n1 Object name: p9r 1 n 1 nichostnamesuffixes.ib0=-ib nicips.ib0=10.10. 1 . 1 nicnetworks.ib0=net-app-ib nictypes.ib0=InfiniBand $ lsdef --nics -t group ac922 Object name: ac922 nichostnamesuffixes.ib0=-ib nicips.ib0=10.10.($1+0).($2+0) nicnetworks.ib0=net-app-ib nictypes.ib0=InfiniBand $ chdef -t group ac922\ nictypes='ib0!InfiniBand' \ nicnetworks='ib0!net-app-ib' \ nichostnamesuffixes='ib0!-ib' \ nicips='|p9r(\d+)n(\d+)|ib0!10.10.($1+0).($2+0)|' 1 object definitions have been created or modified. nichostnamesuffixes='eth0!-port0ip1|-port0ip2,eth1!-port1ip1|-port1ip2' To configure the InfiniBand network interfaces of the compute nodes, complete the following  steps: Note:  The following definition results in the same IP: nicips='|ib0!10.10.($2+0).($3+0)|' Note:  To view the full  nicips  value, add  --verbose  to the  lsdef  command.