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26-2
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 26 Configuring and Managing VSANs
About VSANs
• Events causing traffic disruptions in one VSAN are contained within that VSAN and are not
propagated to other VSANs.
The switch icons shown in both Figure 26-1 and Figure 26-2 indicate that these features apply to any
switch in the Cisco MDS 9000 Family.
Figure 26-1 shows a fabric with three switches, one on each floor. The geographic location of the
switches and the attached devices is independent of their segmentation into logical VSANs. No
communication between VSANs is possible. Within each VSAN, all members can talk to one another.
Figure 26-1 Logical VSAN Segmentation
Figure 26-2 shows a physical Fibre Channel switching infrastructure with two defined VSANs: VSAN
2 (dashed) and VSAN 7 (solid). VSAN 2 includes hosts H1 and H2, application servers AS2 and AS3,
and storage arrays SA1 and SA4. VSAN 7 connects H3, AS1, SA2, and SA3.
Switch 1
Switch 2
Switch 3
Engineering
VSAN
Marketing
VSAN
Accounting
VSAN
Floor 3
Floor 2
Floor 1
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