Traffic Isolation Zoning
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Traffic Isolation Zoning overview...................................................................................341
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TI zone failover .............................................................................................................342
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Enhanced TI zones....................................................................................................... 346
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Traffic Isolation Zoning over FC routers........................................................................348
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Fabric-Level Traffic Isolation in a backbone fabric........................................................352
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General rules for TI zones.............................................................................................356
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Supported configurations for Traffic Isolation Zoning....................................................358
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Limitations and restrictions of Traffic Isolation Zoning.................................................. 359
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Admin Domain considerations for Traffic Isolation Zoning............................................360
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Virtual Fabrics considerations for Traffic Isolation Zoning............................................ 360
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Traffic Isolation Zoning over FC routers with Virtual Fabrics........................................ 362
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Creating a TI zone.........................................................................................................363
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Modifying TI zones........................................................................................................ 366
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Changing the state of a TI zone.................................................................................... 368
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Deleting a TI zone......................................................................................................... 368
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Displaying TI zones.......................................................................................................369
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Troubleshooting TI zone routing problems....................................................................370
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Setting up TI zones over FCR (sample procedure).......................................................370
Traffic Isolation Zoning overview
Traffic Isolation Zoning 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).
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.
The illustration below shows a fabric with a TI zone consisting of the following:
• N_Ports: "1,7", "1,8", "4,5", and "4,6"
• E_Ports: "1,1", "3,9", "3,12", and "4,7"
The dotted line indicates the dedicated path between the initiator in Domain 1 to the target in Domain 4.
Fabric OS Administrators Guide
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