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Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 66 Troubleshooting Your Fabric
Fibre Channel Time Out Values
Note The fabric stability TOV (F_S_TOV) constant cannot be configured.
Timer Configuration Across All VSANs
You can modify Fibre Channel protocol related timer values for the switch.
Caution The D_S_TOV, E_D_TOV, and R_A_ TOV values cannot be globally changed unless all VSANs in the
switch are suspended.
To configure timeouts using Fabric Manager, follow these steps:
Step 1 Select SAN in the Logical Domains pane to include all VSANs.
Step 2 Expand Switches, expand FC Services and select Timers & Policies in the Physical Attributes pane.
You see the timers for switches in the Information pane.
Step 3 Click Change Timeouts to configure the time-out values.
You see the Change Timeouts dialog box shown in Figure 66-12.
Figure 66-12 Change Timeouts Dialog Box
Step 4 Indicate values for R_A_TOV (Resource Allocation Time Out Value), D_S_TOV (Distributed Services
Time Out Value), and E_D_TOV (Error Detect Time Out Value).
Step 5 Click Apply.
Step 6 Click Close to close the dialog box.
To configure timer policies in Device Manager, follow these steps:
Step 1 Choose FC > Advanced > Timers/Policies.
You see timer policies for a single switch in the dialog box shown in Figure 66-13.
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