Brocade Network Advisor SAN User Manual v12.0.0 (53-1002696-01, April 2013)

Brocade Network Advisor SAN User Manual 507

53-1002696-01

Guidelines for setting up Fibre Channel routing

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

IFL

IFL IFL