2–Managing Fabrics
Transparent Router
59266-01 B 2-11
A TR_Port is used as a bridge between the transparent router’s local fabric and a
remote fabric. A TR_Port uses standard NPIV login methods to attach to the
remote fabric. For remote Brocade or Cisco fabrics, the switch to which the
TR_Port connects must support N-Port ID Virtualization (NPIV) and for Brocade
fabrics the interoperability mode must be configured to InteropMode=0. The
TR_Port logs into the remote fabric using the WWN of the TR_Port. The TR_Port
accesses fabric services of the remote fabric, such as Name Server and
Management Server, and may receive registered state change notifications
(RSCNs). The TR_Port uses FDISCs to login proxies for devices attached to an
N_Port on the switch. Any of the switch 8Gb ports may be configured as a
TR_Port.
TR Mapping Manager Dialog Box
The TR Mapping Manager dialog box (Figure 2-4) displays the currently mapped
inter-fabric routes. You can create new inter-fabric routes, view detail information
on existing inter-fabric routes, and remove existing inter-fabric routes. To view the
TR Mapping Manager dialog box, on the Fabric menu, click TR Mapping
Manager.
NOTE:
Be sure to configure the TR_Port before connecting the remote fabric to the
switch. If the remote fabric is connected to a port on the switch that is not a
TR_Port, the two fabrics may establish an E_Port connection and the local
and remote fabrics may merge. This mixed fabric is not a supported
configuration. If the port type is changed to TR_Port after connecting the
remote fabric, a port reset may be required to completely establish the TR
connection.
NOTE:
Since Cisco switches do not support the Unzoned Name Server, Cisco
fabrics must be “pre-zoned” before you can set up TR mappings to a remote
Cisco fabric using the TR Mapping Manager dialog box. The Cisco fabric
zone set must be changed to add zones so that the WWNs of the remote
devices to be mapped and the WWNs of the switch TR ports are zoned
together. For more information, see the Cisco documentation for specific
information to configure zoning. Retain these zones in the zone set after
completion of the TR mapping as a best practice, until you no longer need to
map the device to the local fabric.
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