Discover the InfiniBand Fabric Topology

The ibnetdiscover command enables you to see the InfiniBand fabric topology and build a topology file which is used by the OpenSM Subnet Manager.

1. Identify the prerequisite and subsequent installation tasks that you must perform in conjunction with this procedure.

   See Installation Sequence.

2. On the management controller, type:

   # ibnetdiscover
   #
   # Topology file: generated on Thu Aug 13 18:16:02 2009
   #
   # Max of 2 hops discovered
   # Initiated from node 0021283a8620b0f0 port 0021283a8620b0f0
   vendid=0x2c9
   devid=0xbd36
   sysimgguid=0x21283a8620b0f3
   switchguid=0x21283a8620b0f0(21283a8620b0f0)
   Switch  36 "S-0021283a8620b0f0"         # "Sun DCS 72 QDR FC switch o4nm2-72p-2" enhanced port 0 lid 25 lmc 0
   [36]    "S-0021283a8620b0d0"[4]         # "Sun DCS 72 QDR switch 1.2(LC)" lid 23 4xQDR
   [35]    "S-0021283a8620b0b0"[5]         # "Sun DCS 72 QDR switch 1.2(LC)" lid 21 4xQDR
   [34]    "S-0021283a8620b0d0"[6]         # "Sun DCS 72 QDR switch 1.2(LC)" lid 23 4xQDR
   .
   .
   .
   vendid=0x2c9
   devid=0xbd36
   sysimgguid=0x21283a8620b0e3
   switchguid=0x21283a8620b0e0(21283a8620b0e0)
   Switch  36 "S-0021283a8620b0e0"         # "Sun DCS 72 QDR switch 1.1(FC)" base port 0 lid 24 lmc 0
   [22]    "S-0021283a8620b0c0"[18]                # "Sun DCS 72 QDR switch 1.2(LC)" lid 22 4xQDR
   .
   .
   .
   #

   ---

   Note - The output for your InfiniBand fabric will differ from that in the example.

   ---

3. Perform InfiniBand fabric diagnostics.

   See Perform Diagnostics on the InfiniBand Fabric.

Related Information

• Switch Reference, ibnetdiscover command

• Validate the InfiniBand Fabric and Report Errors