Brocade Communications Systems Fabric OS v7.0.1, Command Reference Manual

Page: 335 / 1132

Fabric OS Command Reference 309
53-1001764-01
fcrLsan
2
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 FC router must run Fabric OS v6.2.0 or later.
•
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 or Admin Domain restrictions that may be in
place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "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.