Brocade Fabric OS Administrator's Guide Supporting Fabric OS v6.3.0 (53-1001336-02, November 2009)

410 Fabric OS Administrator’s Guide

53-1001336-02

Supported configurations for Traffic Isolation Routing

• Each TI zone is interpreted by each switch and each switch considers only the routing required

for its local ports. No consideration is given to the overall topology and to whether the TI zones

accurately provide dedicated paths through the whole fabric.

For example, in Figure 57, the TI zone was configured incorrectly and E_Port “3,9” was

erroneously omitted from the zone. The domain 3 switch assumes that traffic coming from

E_Port 9 is not part of the TI zone and so that traffic is routed to E_Port 11 instead of E_Port

12, if failover is enabled. If failover is disabled, the route is broken and traffic stops.

FIGURE 57 TI zone misconfiguration

Supported configurations for Traffic Isolation Routing

Note the following configuration rules for TI zones:

• Traffic Isolation Routing is supported only on Brocade 200E, 300, 4100, 4900, 5000, 5100,

5300, 5410, 5424, 5450, 5480, 7500, 7500E, 7600 switches, the Brocade 48000 and

Brocade DCX platforms, all configured in Brocade Native Mode (interopmode 0).

• Ports in a TI zone must belong to switches that run Fabric OS v6.0.0 or later. For TI over FCR

zones, ports must belong to switches that run Fabric OS v6.1.0 or later.

• Traffic Isolation Routing has limited support for FICON FCIP in McDATA Fabric Mode

(interopmode 2), in the following configuration only:

- Brocade 7500 with E_Port connections to an M-switch and VE_Port connections to

another Brocade 7500.

- Devices attached to M-switch only.

Following is a sample configuration:

Devices—M-switch—Brocade 7500—Brocade 7500—M-switch—Devices

• Fabric OS 6.1.0 or later supports Traffic Isolation Routing in a mixed fabric (that is, a fabric with

Fabric OS and M-EOS switches) operating in interopmode 2. Traffic Isolation Routing is not

supported in fabrics configured in Open Fabric Mode (interopmode 3).

• In interopmode 2, a zone member for a TI zone is limited to a port index of 255 or less.

• VE_Ports are supported in TI zones.

= Dedicated path

= Ports in the TI zone

Domain 1 Domain 3

Domain 4