Dell Brocade G620 Brocade 8.0.1 Fabric OS Administratiors Guide - Page 357
Traffic Isolation Zoning, Traffic Isolation Zoning overview
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Traffic Isolation Zoning ∙ Traffic Isolation Zoning overview...357 ∙ FSPF routing rules and traffic isolation...359 ∙ Enhanced TI zones...361 ∙ General rules for TI zones...364 ∙ Limitations and restrictions of Traffic Isolation Zoning...366 ∙ Creating a TI zone...366 ∙ Modifying TI zones...367 ∙ Changing the state of a TI zone...368 ∙ Deleting a TI zone...368 ∙ Displaying TI zones...368 ∙ Enforcing Local TI Filtering...369 ∙ Fabric-Level Traffic Isolation in a backbone fabric...374 ∙ Virtual Fabrics considerations for Traffic Isolation Zoning...381 ∙ Traffic Isolation Zoning over FC routers with Virtual Fabrics...383 ∙ Troubleshooting TI zone routing problems...385 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. NOTE Traffic Isolation Zoning is an advanced feature, but does not require a license. A strong understanding of Fabric Shortest Path First (FSPF) is required. Isolating traffic requires that you create a special zone, called a Traffic Isolation zone (TI zone). A TI zone indicates that a set of N_Ports and E_Ports are to be used only for a specific isolated traffic flow. When a TI zone is activated, the fabric attempts to isolate all interswitch traffic entering the fabric 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. Brocade Fabric OS Administration Guide, 8.0.1 53-1004111-02 357