Brocade Communications Systems Network Advisor 12.3.0, User Manual

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916 Brocade Network Advisor SAN User Manual
53-1003154-01
Traffic Isolation zones
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Traffic Isolation zones
A Traffic Isolation zone (TI zone) is a special zone that isolates inter-switch traffic to a specific,
dedicated path through the fabric. A TI zone contains a list of E_Ports, followed by a list of N_Ports.
When the TI zone is activated, the fabric attempts to isolate all inter-switch traffic between N_Ports
to only those E_Ports that have been included in the zone. The fabric also attempts to exclude
traffic not in the TI zone from using E_Ports within that TI zone.
Traffic Isolation zoning is only supported with domain and port index number members.
To create a TI zone for a logical fabric that uses XISLs, you must create two TI zones: one in the
logical fabric and one in the base fabric. The combination of TI zones in the base fabric and logical
fabric sets the path through the base fabric for logical switches.
NOTE
TI zones are not supported with Network OS.
Failover options
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.
Enable failover if you want traffic to have alternate routes if either the dedicated or non-dedicated
paths cannot be used.
ATTENTION
If failover is disabled, use care when planning your TI zones so that non-TI zone devices are not
isolated. If disabled failover is not used correctly, it can cause major fabric disruptions that are
difficult to resolve.
For base switches, failover is always enabled, and you cannot change it.
Enhanced TI zones
In Fabric OS 6.4.0 or later, ports can be in multiple TI zones. Zones with overlapping port members
are called
enhanced TI zones (ETIZ).
Enhanced TI zones are supported only on the following platforms:
•
24-port, 8 Gbps FC Switch (Brocade 300)
•
40-port, 8 Gbps FC Switch (Brocade 5100)
•
80-port, 8 Gbps FC Switch (Brocade 5300)
•
48-port, 16 Gbps FC Switch (Brocade 6510)
•
8 Gbps 12-port Embedded Switch (Brocade 5410)
•
8 Gbps 24-port Embedded Switch (Brocade 5424, 5450, 5460)
•
8 Gbps 16-port Embedded Switch (Brocade 5470)
•
8 Gbps 24-port Embedded Switch (Brocade 5480)
•
8 Gbps Extension Switch (Brocade 7800)
•
8 Gbps 8-FC port, 10 GbE 24-DCB port Switch (Brocade 8000)