Brocade Communications Systems 53-1001763-02, Administrator'S Manual

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Fabric OS Administrator’s Guide 463
53-1001763-02
Fibre Channel routing concepts
21
FIGURE 72
Sample topology (physical topology)
Figure 73 shows a phantom topology for the physical topology shown in Figure 72 . In this figure,
the dashed lines and shapes represent the phantom topology from the perspective of Fabric 1.
Fabrics 2 and 3 also see phantom topologies, but they are not shown in this example. In this figure,
note the following:
•
Front domain 1 and Front domain 2 are front domains for EX_Ports connecting to Fabric 1.
There is one front domain for each FC router that is connected to Fabric 1.
•
Xlate domain 1 and Xlate domain 2 represent Fabrics 2 and 3, respectively. No xlate domain is
created for Fabric 4 because there are no LSAN devices in Fabric 4.
•
Target 1’, Target 2’, and Target 3’ are proxy devices for Target 1, Target 2, and Target 3,
respectively.
FIGURE 73 EX_Port phantom switch topology
Fabric 1 Fabric 2 Fabric 3 Fabric 4
Host Target 1 Target 2 Target 3
FC router 1 FC router 4 FC router 3 FC router 2
EX
E
EX
EX
EX
EX
EX
EX
E
E
E
E
E
E
Fabric 1
Target 1' Target 3' Target 2'
Front domain 1
(FC router 1) Front domain 2
(FC router 2)
Xlate domain 1
(Fabric 2) Xlate domain 2
(Fabric 3)
Host 1