Brocade Network Advisor SAN User Manual v12.3.0 - Manual (Page 722)

670 Brocade Network Advisor SAN User Manual
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Fibre Channel routing overview
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• Any of the following blades on a Backbone chassis:
- 4 Gbps Router, Extension Blade
- FC 8 GB 16-port Blade
- FC 8 GB 32-port Blade
- FC 8 GB 32-port Enhanced Blade (16 Gbps 4-slot or 16 Gbps 4-slot Backbone Chassis
only)
- FC 8 GB 48-port Blade - The shared ports area (ports 16-47) cannot be used as EX_Ports.
- FC 8 GB 48-port Enhanced Blade (16 Gbps 4-slot or 16 Gbps 4-slot Backbone Chassis
only)
- FC 8 GB 64-port Blade
- 8 Gbps Extension Blade
- 16 Gbps 32-port Blade
- 16 Gbps 48-port Blade
Fibre Channel routing overview
Fibre Channel (FC) routing provides connectivity to devices in different fabrics without merging the
fabrics. Using Fibre Channel routing, you can share tape drives across multiple fabrics without the
administrative overhead, such as change management and network management, and scalability
issues that might result from merging the fabrics.
Fibre Channel routing allows you to create logical storage area networks (LSANs) that can span
fabrics. These LSANs allow Fibre Channel zones to cross physical SAN boundaries without merging
the fabrics and while maintaining the access controls of zones.
Refer to the Fabric OS Administrator’s Guide for detailed information about Fibre Channel routing.
The following terminology is used in this chapter:
FC router
A switch running the FC-FC Routing Service.
Interfabric link (IFL) The link between an E_Port and an EX_Port, or a VE_Port and a VEX_Port.
Edge fabric A standard Fibre Channel fabric with targets and initiators connected
through an FC router to another Fibre Channel fabric.
Backbone fabric The fabric to which the FC router belongs. An FC router connects two or
more edge fabrics; a backbone fabric connects FC routers. A backbone
fabric consists of at least one FC router and possibly a number of
Fabric OS-based Fibre Channel switches. Initiators and targets in the edge
fabric can communicate with devices in the backbone fabric through the FC
router.
LSAN A logical SAN that spans fabrics. An LSAN is defined by zones in two or more
edge or backbone fabrics that contain the same devices. LSANs enable
Fibre Channel zones to cross physical SAN boundaries without merging the
fabrics while maintaining the access controls of zones.
metaSAN The collection of all SANs interconnected with FC routers.