User`s guide

226 Implementing an Open IBM SAN
We show a representation of this in Figure 3-45.
Figure 3-45 IN-VSN: loop port in name server table as NL_Port
Port hewlett_td0 was set to enable AutoSense AL and we actually attached this
port physically. After logging in, this port is displayed as an NL_Port, since this is
a public loop port.
Bypassing loop devices
In cases where you have multiple loop devices attached to one director port, you
can specify which devices should be actually used in the fabric.