Brocade Communications Systems Network Advisor 12.0.0, User Manual

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Brocade Network Advisor SAN User Manual 507
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Guidelines for setting up Fibre Channel routing
18
Figure 179 on page 507 shows a metaSAN with a backbone fabric and three edge fabrics. The
backbone consists of one 4 Gbps Router, Extension Switch connecting hosts in Edge fabrics 1 and
3 with storage in Edge fabric 2 and the backbone fabric. LSANs provide device sharing between the
following pairs of fabrics:
•
The backbone fabric and Edge fabric 1
•
Edge fabric 1 and Edge fabric 2
•
Edge fabric 2 and Edge fabric 3
FIGURE 179
A metaSAN with edge-to-edge and backbone fabrics
Guidelines for setting up Fibre Channel routing
The following are some general guidelines for setting up Fibre Channel routing:
•
Ensure that the backbone fabric ID of the FC router is the same as that of other FC routers in
the backbone fabric.
•
On the FC router, ensure that the ports to be configured as EX_Ports are either disabled or not
connected.
•
When configuring EX_Ports, supply a fabric ID for the fabric to which the port will be connected.
You can choose any unique fabric ID as long as it is consistent for all EX_Ports that connect to
the same edge fabric.
•
For Virtual Fabric (VF)-enabled fabrics, only the base switch can be configured as the FC router;
for example, EX_Ports can be configured only on a base switch for a VF-enabled switch.
Edge fabric 1
Backbone fabric
Edge fabric 3
Edge fabric 2
IP cloud
= LSAN
FC router
VEX_Port
VE_Port
EX_Port (2)
E_Port
E_Port
IFL
IFL IFL