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348 Fabric OS Administrator’s Guide
53-1002745-02
Traffic Isolation Zoning overview
12
• Ensure that there are multiple paths between switches.
Disabling failover locks the specified route so that only TI zone traffic can use it. Non-TI zone
traffic is excluded from using the dedicated path.
• You should enable failover-enabled TI zones before enabling failover-disabled TI zones, to avoid
dropped frames.
When you issue the cfgEnable command to enable the zone configuration, if you have failover
disabled zones, do the following:
1. Temporarily change failover-disabled TI zones to failover-enabled.
2. Enable the zones (cfgEnable).
3. Reset all the zones you changed in step 1 to failover-disabled.
4. Enable the zones again (cfgEnable).
These steps are listed in the procedures in this section.
• It is recommended that TI zone definitions and regular zone definitions match.
• Domain controller frames can use any path between switches. Disabling failover does not
affect Domain Controller connectivity.
For example, in Figure 32, if failover is disabled, Domain 2 can continue to send domain
controller frames to Domain 3 and 4, even though the path between Domain 1 and Domain 3
is a dedicated path. Domain controller frames include zone updates and name server queries.
FIGURE 32 Fabric incorrectly configured for TI zone with failover disabled
• It is recommended that the insistent Domain ID feature be enabled; if a switch changes its
active domain ID, the route is broken. See the configure command in the Fabric OS Command
Reference for information about setting insistent Domain ID.
7
12
3
15
Domain 1 Domain 3
Domain 4
Domain 2
8
19
6
9
5
= Dedicated Path
= Ports in the TI zone