Fabric OS Administrator’s Guide 267
53-1001763-02
Chapter
12

Traffic Isolation Zoning

In this chapter
•Traffic Isolation Zoning overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
•Enhanced TI zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
•Traffic Isolation Zoning over FC routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
•General rules for TI zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
•Supported configurations for Traffic Isolation Zoning. . . . . . . . . . . . . . . . . 277
•Limitations and restrictions of Traffic Isolation Zoning. . . . . . . . . . . . . . . . 278
•Admin Domain considerations for Traffic Isolation Zoning. . . . . . . . . . . . . 279
•Virtual Fabric considerations for Traffic Isolation Zoning . . . . . . . . . . . . . . 279
•Traffic Isolation Zoning over FC routers with Virtual Fabrics . . . . . . . . . . . 281
•Creating a TI zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
•Modifying TI zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
•Changing the state of a TI zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
•Deleting a TI zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
•Displaying TI zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
•Setting up TI over FCR (sample procedure) . . . . . . . . . . . . . . . . . . . . . . . . . 287

Traffic Isolation Zoning overview

The Traffic Isolation Zoning feature allows you to control the flow of interswitch traffic by creating a
dedicated path for traffic flowing from a specific set of source ports (N_Ports). For example, you
might use Traffic Isolation Zoning for the following scenarios:
•To dedicate an ISL to high priority, host-to-target traffic.
•To force high volume, low priority traffic onto a given ISL to limit the effect on the fabric of this
high traffic pattern.
•To ensure that requests and responses of FCIP-based applications such as tape pipelining use
the same VE_Port tunnel across a metaSAN.
Traffic Isolation Zoning does not require a license.
Traffic isolation is implemented using a special zone, called a Traffic Isolation zone (TI zone). A TI
zone indicates the set of N_Ports and E_Ports to be used for a specific traffic flow. When a TI zone
is activated, the fabric attempts to isolate all inter-switch traffic entering from a member of the
zone to only those E_Ports that have been included in the zone. The fabric also attempts to exclude
traffic not in the TI zone from using E_Ports within that TI zone.