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Fabric OS Administrator’s Guide
53-1001763-02
Enhanced TI zones
12
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 38
shows an example of two TI zones. Because these TI zones have an overlapping port
(3,8), they are enhanced TI zones.
FIGURE 38
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.
When you create TI zones, ensure that all traffic from a port to all destinations on a remote domain
have the same path. You cannot create separate paths from a local port to two or more devices on
the same remote domain.
Figure 39
on page 273 shows two enhanced TI zones that are configured incorrectly. If the TI zones
are configured with failover disabled, some traffic will be dropped. If the TI zones are configured
with failover enabled, all traffic will go through, but half of the traffic will be routed incorrectly
according to the TI zone definitions.
This example contains two enhanced TI zones:
•
ETIZ 1 contains (1,1), (1,2), (3,6), (3,8)
•
ETIZ 2 contains (2,1), (2,2), (1,4), (1,3), (3,7), (3,8)
In this example traffic from the Target to Domain 2 is routed correctly. Only one TI zone describes a
path to Domain 2. However, both TI zones describe different, valid paths from the Target to Domain
1. Only one path will be able to get to (1,1). Traffic from port (3,8) cannot be routed to Domain 1
over both (3,6) and (3,7), so one port will be chosen. If (3,7) is chosen, frames destined for (1,1)
will be dropped at Domain 1.
7
Domain 1
Domain 3
Domain 2
Host 1
1
6
= ETIZ 1
2
8
1
2
Host 2
Target
= ETIZ 2
Summary of Contents for 53-1001763-02
Page 1: ...53 1001763 02 13 September 2010 Fabric OS Administrator s Guide Supporting Fabric OS v6 4 0 ...
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Page 42: ...2 Fabric OS Administrator s Guide 53 1001763 02 ...
Page 54: ...14 Fabric OS Administrator s Guide 53 1001763 02 High availability of daemon processes 1 ...
Page 74: ...34 Fabric OS Administrator s Guide 53 1001763 02 Basic connections 2 ...
Page 102: ...62 Fabric OS Administrator s Guide 53 1001763 02 Audit log configuration 3 ...
Page 214: ...174 Fabric OS Administrator s Guide 53 1001763 02 Management interface security 7 ...
Page 228: ...188 Fabric OS Administrator s Guide 53 1001763 02 Brocade configuration form 8 ...
Page 276: ...236 Fabric OS Administrator s Guide 53 1001763 02 Creating a logical fabric using XISLs 10 ...
Page 404: ...364 Fabric OS Administrator s Guide 53 1001763 02 ...
Page 440: ...400 Fabric OS Administrator s Guide 53 1001763 02 Performance data collection 17 ...
Page 480: ...440 Fabric OS Administrator s Guide 53 1001763 02 F_Port masterless trunking 19 ...
Page 494: ...454 Fabric OS Administrator s Guide 53 1001763 02 Buffer credit recovery 20 ...
Page 574: ...534 Fabric OS Administrator s Guide 53 1001763 02 Hexadecimal overview E ...