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37-4
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 37 Advanced Features and Concepts
Fibre Channel Time Out Values
If a switch is downgraded to Cisco MDS SAN-OS Release 1.2 or 1.1 after the timer is configured for a
VSAN, an error message is issued to warn against strict incompatibilities. the Cisco MDS 9000 Family
Troubleshooting Guide.
To configure per-VSAN Fiber Channel timers using Device Manager, follow these steps:
Step 1 Click FC > Advanced > VSAN Timers.
You see the VSANs Timer dialog box as shown in Figure 37-3.
Figure 37-3 VSAN Timers in Device Manager
Step 2 Fill in the timer values that you want to configure.
Step 3 Click Apply to save these changes.
About fctimer Distribution
You can enable per-VSAN fctimer fabric distribution for all Cisco MDS switches in the fabric. When
you perform fctimer configurations, and distribution is enabled, that configuration is distributed to all
the switches in the fabric.
You automatically acquire a fabric-wide lock when you issue the first configuration command after you
enabled distribution in a switch. The fctimer application uses the effective and pending database model
to store or commit the commands based on your configuration.
See Chapter 13, “Using the CFS Infrastructure,” for more information on the CFS application.
Enabling or Disabling fctimer Distribution
To enable and distribute fctimer configuration changes using Device Manager, follow these steps:
Step 1 Choose FC > Advanced > VSAN Timers.
You see the VSANs Timer dialog box as shown in Figure 37-3.
Step 2 Fill in the timer values that you want to configure.
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