Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 300

fcrLsan fcrLsan Configures and displays LSAN policies. Synopsis fcrlsan fcrlsan --add -enforce tag | -speed tag fcrlsan --remove -enforce tag | -speed tag fcrlsan --show -enforce | -speed | -all fcrlsan --help Description Use this command to add or remove LSAN tags, or to display existing tags in the configuration. LSAN tagging optimizes an FC Router's behavior based on a specified subset of LSANS. This feature improves scalability and performance related to LSAN zone size and the speed with which they are imported or exported. This command supports two types of LSAN tags: enforced tags and speed tags. • Enforced LSAN tags filter zones accepted by the FC Router from the edge fabric by matching the zones to the configured tags. Only matching zones are accepted into the local database for export and import. For example, if you configure an enforced LSAN tag "BRCD" on a router, only zones with names starting with "lsan_BRCD" are accepted. If multiple tags are configured, any matching zones are accepted. A maximum of eight LSAN enforce tags are configurable per FC Router switch. • A speed tag is a flag to indicate to the FCR that the targets in the LSANs matching the tag need to be imported permanently when host and target are zoned together, even if the host is not present. This mechanism facilitates a speedy discovery process by reducing instances of failure related to timeouts. Once the devices that belong to the target edge fabric are defined as speed LSANS, the import or export can occur with a minimum amount of delay when hosts reboot or are added to the zone database. The following restrictions apply when configuring LSAN tags: • The switch must be disabled when you configure enforce tags. Speed tags can be configured while the switch is online. • You must change the LSAN name in the edge fabric or the backbone fabric and propagate the LSAN to the FCR. Note that enforce tags are not supported in the backbone fabric. • The speed tags must be set in all related FC Routers in order for import and export to proceed correctly. However, only LSANs on the target edge fabric must append the tag. When executed without operands, fcrlSan displays the command usage. Notes The execution of this command is subject to Virtual Fabric restrictions that may be in place. Refer to "Using Fabric OS Commands" and "Command Availability" for details. Operands This command has the following operands: --add Adds the specified tag to the LSAN tag configuration. --remove Removes the specified tag from the LSAN tag configuration. 276 Brocade Fabric OS Command Reference 53-1004112-02