You can use the ibdiagnet to generate the topology of the IB Network simply by using the “-w” switch
# ibdiagnet -w /var/tmp/ibdiagnet2/topology.top ..... ..... -I- ibdiagnet database file : /var/tmp/ibdiagnet2/ibdiagnet2.db_csv -I- LST file : /var/tmp/ibdiagnet2/ibdiagnet2.lst -I- Topology file : /var/tmp/ibdiagnet2/topology.top -I- Subnet Manager file : /var/tmp/ibdiagnet2/ibdiagnet2.sm -I- Ports Counters file : /var/tmp/ibdiagnet2/ibdiagnet2.pm -I- Nodes Information file : /var/tmp/ibdiagnet2/ibdiagnet2.nodes_info -I- Partition keys file : /var/tmp/ibdiagnet2/ibdiagnet2.pkey -I- Alias guids file : /var/tmp/ibdiagnet2/ibdiagnet2.aguid
# vim /var/tmp/ibdiagnet2/topology.top
# This topology file was automatically generated by IBDM SX6036G Left-Leaf-SW03 U1/P1 -4x-14G-> HCA_1 mtlacad05 U1/P1 U1/P17 -4x-14G-> SX6012 Right-Spine-SW02 U1/P2 U1/P18 -4x-14G-> SX6012 Left-Spine-SW01 U1/P2 U1/P2 -4x-14G-> HCA_1 mtlacad07 U1/P1 U1/P3 -4x-14G-> HCA_1 mtlacad03 U1/P1 U1/P4 -4x-14G-> HCA_1 mtlacad04 U1/P1 U1/P6 -4x-14G-> HCA_1 mtlacad06 U1/P1 ..... .....
