Usage: /usr/bin/iblinkinfo [options]

Options:
  --node-name-map <file>  node name map file
  --switch, -S <port_guid>  start partial scan at the port specified by
                            <port_guid> (hex format)
  --port-guid, -G <port_guid>  (same as -S)
  --Direct, -D <dr_path>  start partial scan at the port specified by <dr_path>
  --all, -a               print all nodes found in a partial fabric scan
  --hops, -n <hops>       Number of hops to include away from specified node
  --down, -d              print only down links
  --line, -l              (line mode) print all information for each link
                          on a single line
  --additional, -p        print additional port settings (PktLifeTime,
                          HoqLife, VLStallCount)
  --load-cache <file>     filename of ibnetdiscover cache to load
  --diff <file>           filename of ibnetdiscover cache to diff
  --diffcheck <key(s)>    specify checks to execute for --diff
  --filterdownports <file>  filename of ibnetdiscover cache to filter downports
  --outstanding_smps, -o <val>  specify the number of outstanding SMP's
                                which should be issued during the scan
  --switches-only         Output only switches
  --cas-only              Output only CAs
  --config, -z <config>   use config file, default: /etc/infiniband-diags/ibdiag.conf
  --Ca, -C <ca>           Ca name to use
  --Port, -P <port>       Ca port number to use
  --timeout, -t <ms>      timeout in ms
  --sm_port, -s <lid>     SM port lid
  --m_key, -y <key>       M_Key to use in request
  --pkey-idx, -Y <idx>    P_Key table index for outgoing SA/GMP MADs
                          (default 0)
  --errors, -e            show send and receive errors
  --verbose, -v           increase verbosity level
  --help, -h              help message
  --version, -V           show version