fcnsq - Fibre Channel Name Server Query Tool
fcnsq host --gpn port_id [-q | --quiet]
fcnsq host --gnn port_id [-q | --quiet]
fcnsq host --gspn port_id [-q | --quiet]
fcnsq host --gsnn wwpn [-q | --quiet]
The fcnsq command performs Fibre Channel Name Server queries for a user-specified FC Host. The supported name server query commands include: Get Port Name (GPN), Get Node Name (GNN), Get Symbolic Node Name (GSNN), and Get Symbolic Port Name (GSPN) as described in FC-GS-3 for the Common Transport (CT) services.
fcnsq takes the host bsg name as the input for the target host. Host bsg name must be a valid bsg device, e.g., "host12" as derived from /dev/bsg/fc_host12. For each name server query command, the argument is either a Port ID or a World Wide Port Name. Port IDs and World Wide Names must be specified in hexadecimal. To disable verbose output, use the --quiet option.
host --gpn port_id
host --gnn port_id
host --gspn port_id
host --gsnn wwpn
Query Get Port Name (GPN) from host12 for Port ID 0xbf0027
fcnsq host12 --gpn bf0027
Query Get Node Name (GNN) from host12 for Port ID 0xbf0027
fcnsq host12 --gnn bf0027
Query Get Symbolic Port Name (GSPN) from host12 for Port ID 0xbf0027
fcnsq host12 --gspn bf0027
Query Get Symbolic Node Name (GSNN) from host12 for WWWPN 0x1000001B213C9DDA
fcnsq host12 --gsnn 0x1000001B213C9DDA
fcnsq is part of the fcoe-utils package, maintained through the Open-FCoE project. Resources for both developers and users can be found at the Open-FCoE website http://open-fcoe.org/.