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37-3
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
To configure timers in Fabric Manager, expand Switches > FC Services and then select Timers &
Policies in the Physical Attributes pane. You see the timers for multiple switches in the Information
pane. Click the Change Timeouts button to configure the timeout values.
You see the dialog box as shown in Figure 37-1.
Figure 37-1 Configure Timers in Fabric Manager
To configure timers in Device Manager, click FC > Advanced > Timers/Policies. You see the timers for
a single switch in the dialog box as shown in
Figure 37-2.
Figure 37-2 Configure Timers in Device Manager
Timer Configuration Per-VSAN
You can also issue the fctimer for a specified VSAN to configure different TOV values for VSANs with
special links like FC or IP tunnels. You can configure different E_D_TOV, R_A_TOV, and D_S_TOV
values for individual VSANs. Active VSANs are suspended and activated when their timer values are
changed.
Caution You cannot perform a nondisruptive downgrade to any earlier version that does not support per-VSAN
FC timers.
Note This configuration must be propagated to all switches in the fabric—be sure to configure the same value
in all switches in the fabric.
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