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Advanced Fibre Channel Features
The changes are only available in the volatile directory and are subject to being discarded if the switch is
restarted.
To use administrative privileges and release a locked fctimer session, use the clear fctimer session command.
switch# clear fctimer session
Fabric Database Merge Guidelines
When merging two fabrics, follow these guidelines:
• Be aware of the following merge conditions:
• Do not configure global timer values when distribution is enabled.
Note
The number of pending fctimer configuration operations cannot be more than 15. After 15 operations,
you must commit or abort the pending configurations before performing any more operations.
For additional information, refer to CFS Merge Support in the System Management Configuration Guide for
your device.
Verifying Configured fctimer Values
Use the show fctimer command to display the configured fctimer values. The following example displays
the configured global TOVs:
switch# show fctimer
F_S_TOV
----------------------------------------
5000 ms
Note
The F_S_TOV constant, though not configured, is displayed in the output of the show fctimer command.
The following example displays the configured TOV for VSAN 10:
switch# show fctimer vsan 10
vsan no.
-------------------------------------------------
10
OL-30895-01
◦ The merge protocol is not implemented for distribution of the fctimer values. You must manually
merge the fctimer values when a fabric is merged.
◦ The per-VSAN fctimer configuration is distributed in the physical fabric.
◦ The fctimer configuration is only applied to those switches containing the VSAN with a modified
fctimer value.
◦ The global fctimer values are not distributed.
D_S_TOV
E_D_TOV
R_A_TOV
5000 ms
2000 ms
10000 ms
F_S_TOV
D_S_TOV
E_D_TOV
5000 ms
5000 ms
3000 ms
Cisco Nexus 5500 Series NX-OS SAN Switching Configuration Guide, Release 7.x
R_A_TOV
10000 ms
Fibre Channel Timeout Values
217
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