User Manual

Rev 2.1-1.0.6
Mellanox Technologies
195
In addition to generating the files above, the discovery phase also checks for duplicate node/port
GUIDs in the IB fabric. If such an error is detected, it is displayed on the standard output. After
the discovery phase is completed, directed route packets are sent multiple times (according to the
-c option) to detect possible problematic paths on which packets may be lost. Such paths are
explored, and a report of the suspected bad links is displayed on the standard output.
After scanning the fabric, if the
-r option is provided, a full report of the fabric qualities is dis-
played. This report includes:
• SM report
• Number of nodes and systems
• Hop-count information: maximal hop-count, an example path, and a hop-count histo-
gram
• All CA-to-CA paths traced
• Credit loop report
• mgid-mlid-HCAs multicast group and report
• Partitions report
• IPoIB report
ibdiagnet.fdbs A dump of the unicast forwarding tables of the fabric switches
ibdiagnet.mcfdbs A dump of the multicast forwarding tables of the fabric switches
ibdiagnet.masks In case of duplicate port/node Guids, these file include the map
between masked Guid and real Guids
ibdiagnet.sm List of all the SM (state and priority) in the fabric
ibdiagnet.pm A dump of the pm Counters values, of the fabric links
ibdiagnet.pkey A dump of the existing partitions and their member host ports
ibdiagnet.mcg A dump of the multicast groups, their properties and member
host ports
ibdiagnet.db A dump of the internal subnet database. This file can be loaded
in later runs using the -load_db option
In case the IB fabric includes only one CA, then CA-to-CA paths are not reported.
Furthermore, if a topology file is provided, ibdiagnet uses the names defined in it for
the output reports.
Table 27 - ibdiagnet (of ibutils) Output Files
Output File Description