Fabric OS Administrator’s Guide 455
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Chapter
21

Using the FC-FC Routing Service

In this chapter
•FC-FC routing service overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
•Integrated Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457
•Fibre Channel routing concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457
•Setting up the FC-FC routing service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464
•Backbone fabric IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466
•FCIP tunnel configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467
•Inter-fabric link configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468
•FC Router port cost configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471
•EX_Port frame trunking configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
•LSAN zone configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
•Proxy PID configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
•Fabric parameter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
•Inter-fabric broadcast frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490
•Resource monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491
•FC-FC Routing and Virtual Fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
•Upgrade and downgrade considerations for FC-FC routing . . . . . . . . . . . . 495
•Displaying the range of output ports connected to xlate domains . . . . . . 496

FC-FC routing service overview

The FC-FC routing service provides Fibre Channel routing (FCR) between two or more fabrics
without merging those fabrics. A Fibre Channel router (FC router) is a switch running the FC-FC
routing service. The FC-FC routing service can be simultaneously used as an FC router and as a
SAN extension over wide area networks (WANs) using FCIP. FCR supports backbone-to-edge
routing, allowing devices in the backbone to communicate with devices on the edge fabric.
For example, using FCR you can share tape drives across multiple fabrics without the
administrative problems, such as change management, network management, scalability,
reliability, availability, and serviceability, that might result from merging the fabrics.
You can set up QoS traffic prioritization over FC routers. See “QoS: SID/DID traffic prioritization” on
page 403 for information about QoS and instructions for setting traffic prioritization over an FC
router.
FCR supports interoperability with some versions of M-EOS. For more information about M-EOS
interoperability support, see Appendix A, “M-EOS Migration Path to Fabric OS”.