Fabric OS Administrator's Guide v7.0.0 (53-1002148-02, June 2011)

276 Fabric OS Administrator’s Guide
53-1002148-02
Enhanced TI zones
12
FIGURE 39 Dedicated path is not the shortest path
NOTE
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
Prior to Fabric OS v6.4.0, a port could be in only one TI zone at a time. Starting in Fabric OS v6.4.0,
ports can be in multiple TI zones at the same time. Zones with overlapping port members are
called enhanced TI zones (ETIZ).
Figure 40 shows an example of two TI zones. Because these TI zones have an overlapping port
(3,8), they are enhanced TI zones.
FIGURE 40 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 283 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