Reference Guide

FIGURE 37 Traffic Isolation zone creating a dedicated path through the fabric
In this illustration, all traffic entering Domain 1 from N_Ports 7 and 8 is routed through E_Port 1. Similarly, traffic entering Domain 3 from
E_Port 9 is routed to E_Port 12, and traffic entering Domain 4 from E_Port 7 is routed to the devices through N_Ports 5 and 6. Traffic
coming from other ports in Domain 1 would not use E_Port 1, but would use E_Port 2 instead.
TI zone failover
A TI zone can have failover enabled or disabled.
Disable failover if you want to guarantee that TI zone traffic uses only the dedicated path, and that no other traffic can use the dedicated
path. In other words, an exclusive, members-only path.
Enable failover if you want traffic to have alternate routes if the dedicated path cannot be used, and if you want other traffic to be able to
use the dedicated path if the non-dedicated paths are not available.
ATTENTION
If failover is disabled, use care when planning your TI zones so that non-TI zone devices are not isolated. If this feature is not
used correctly, it can cause major fabric disruptions that are difficult to resolve. See Additional considerations when disabling
failover on page 359 for additional information about using this feature.
The following table compares the behavior of traffic when failover is enabled and disabled.
Traffic Isolation Zoning
Brocade Fabric OS Administration Guide, 8.0.1
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