HP 8/24 Brocade Fabric OS Administrator's Guide v6.3.0 (53-1001336-01, July 20 - Page 504
fabric and Edge Fabric 1, between Edge Fabric 1 and Edge Fabric 2, and between Edge Fabric
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21 Fibre Channel routing concepts • Interfabric link (IFL) The link between an E_Port and EX_Port, or VE_Port and VEX_Port, is called an interfabric link (IFL). You can configure multiple IFLs from an FC router to an edge fabric. Figure 70 shows a metaSAN consisting of three edge fabrics connected through a Brocade DCX with interfabric links. Host Edge fabric 1 E_Port Target Edge fabric 2 E_Port Target Edge fabric 3 E_Port Fibre Channel switch IFL IFL EX_Ports FC router Long distance IFL Fibre Channel switch FIGURE 70 A metaSAN with interfabric links • Logical SANs (LSANs) An LSAN is defined by zones in two or more edge or backbone fabrics that contain the same devices. You can create LSANs that span fabrics. These LSANs enable Fibre Channel zones to cross physical SAN boundaries without merging the fabrics while maintaining the access controls of zones. An LSAN device can be a physical device, meaning that it physically exists in the fabric, or it can be a proxy device. Figure 71 on page 463 shows a metaSAN with a backbone consisting of one FC router connecting hosts in edge fabrics 1 and 3 with storage in edge fabric 2 and the backbone fabric through the use of LSANs. Three LSAN zones allow device sharing between the backbone fabric and Edge Fabric 1, between Edge Fabric 1 and Edge Fabric 2, and between Edge Fabric 2 and Edge Fabric 3. 462 Fabric OS Administrator's Guide 53-1001336-01
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