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Chapter 16
Configuring and Managing VSANs
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Default and Isolated VSANs
Up to 256 VSANs can be configured in a switch. Of these, one is a default VSAN (VSAN 1), and another
is an isolated VSAN (VSAN 4094). User-specified VSAN IDs range from 2 to 4093.
Default VSAN
The factory settings for switches in the Cisco MDS 9000 Family have only the default VSAN 1 enabled.
If you do not need more than one VSAN for a switch, use this default VSAN as the implicit parameter
during configuration. If no VSANs are configured, all devices in the fabric are considered part of the
default VSAN. By default, all ports are assigned to the default VSAN.
VSAN 1 cannot be deleted, but it can be suspended.
Note
Isolated VSAN
VSAN 4094 is an isolated VSAN. All non-trunking ports are transferred to this VSAN when the VSAN
to which they belong is deleted. This avoids an implicit transfer of ports to the default VSAN or to
another configured VSAN. All ports in the deleted VSAN are isolated (disabled).
When you configure a port in VSAN 4094 or move a port to VSAN 4094, that port is immediately
Note
isolated.
Caution
Do not use an isolated VSAN to configure ports.
Displaying Isolated VSAN Membership
The show vsan 4094 membership command displays all ports associated with the isolated VSAN.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Default and Isolated VSANs
Cisco MDS 9000 Family Configuration Guide
16-5
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