482 Fabric OS Administrator’s Guide
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LSAN zone configuration
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Normally the FC router automatically accepts all zones with names that start with “lsan_”. You can
specify an Enforce tag to indicate that a particular FC router should only accept zones that start
with the prefix “lsan_tag”. For example, if you specify an Enforce tag of “abc”, the FC router accepts
only those LSAN zones that start with “lsan_abc” and does not import or export any other LSAN
zones.
The Enforce tag can be up to 8 characters long and can contain only letters and numbers. The
Enforce tag is case-insensitive; for example, the tag “abc” is equivalent to “ABC” and “Abc”.
If you specify “abc”, “xyz”, and “fab1” as Enforce tags, then the FC router accepts only those LSAN
zones with names that start with any of the following:
lsan_abc
lsan_xyz
lsan_fab1
In this example, the following LSAN zones would all be accepted:
lsan_abc
Lsan_xyz123456
LSAN_FAB1_abc
You can specify up to eight Enforce tags on an FC router.

Speed tag

During target discovery, the FC router process of presenting proxy devices and setting up paths to
the proxy devices might cause some sensitive hosts to time out or fail. The Speed tag allows you to
speed up the discovery process by importing the devices into the remote edge fabrics when the
devices come online, regardless of the state of the host. This helps sensitive hosts to quickly
discover the devices without timing out.
You set the Speed tag on the FC router, and then configure the LSANs in the target edge fabrics
with the tag.
For example, in Figure 74 on page 483 assume that the host, H1, needs fast access to target
devices D1 and D2. You could set up the Speed tag as follows:
1. In FC router 1 and FC router 2, configure the Speed tag as “super”.
2. In edge fabric 2, configure two LSANs:
lsan_f2_f1 (H1, D1)
lsan_f2_f3 (H1, D2)
The LSAN in the host fabric does not need the tag.
3. In edge fabric 1, configure the following LSAN:
lsan_super_f1_f2 (H1, D1)
4. In edge fabric 3, configure the following LSAN:
lsan_super_f3_f2 (H1, D2)
5. Toggle either the host or target to trigger the fast import process.
The “super” tag is needed only in the LSANs of the target fabrics.
The target proxies D1 and D2 are always present in the host fabric (edge fabric 2), even if the host
is brought down. A target proxy is removed from the host fabric when the target device is offline.