350 Fabric OS Administrator’s Guide
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Enhanced TI zones
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FIGURE 34 Dedicated path is not the shortest path
For information about setting or displaying the FSPF cost of a path, see the linkCost and
topologyShow commands in the Fabric OS Command Reference.
Enhanced TI zones
In Fabric OS v6.4.0 and later, ports can be in multiple TI zones at the same time. Zones with
overlapping port members are called enhanced TI zones (ETIZ).
Figure 35 shows an example of two TI zones. Because these TI zones have an overlapping port
(3,8), they are enhanced TI zones.
FIGURE 35 Enhanced TI zones
Enhanced TI zones are especially useful in FICON fabrics. See the FICON Administrator’s Guide for
example topologies using enhanced TI zones.
See “Additional configuration rules for enhanced TI zones” on page 358 for more information about
enhanced TI zones.
7
12
3
14
15
16
Domain 1 Domain 3
Domain 4
Domain 2
8
19
6
9
5
= Dedicated Path
= Ports in the TI zone
7
Domain 1 Domain 3
Domain 2
Host 1
1
6
= ETIZ 1
2
8
1
2
Host 2
Target
= ETIZ 2
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