Timer Configuration Across All Vsans; Timer Configuration Per-Vsan - Cisco MDS 9000 Series Configuration Manual

Timer Configuration Across All VSANs

• Distributed services TOV (D_S_TOV)—The valid range is from 5,000 to 10,000 milliseconds. The
• Error detect TOV (E_D_TOV)—The valid range is from 1,000 to 4,000 milliseconds. The default is
• Resource allocation TOV (R_A_TOV)—The valid range is from 5,000 to 10,000 milliseconds. The
Note The fabric stability TOV (F_S_TOV) constant cannot be configured.
This section includes the following topics:
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.
Note If a VSAN is not specified when you change the timer value, the changed value is applied to all VSANs in
the switch.
To configure Fibre Channel timers across all VSANs, follow these steps:
Step 1
switch# config terminal
switch(config)
Enters configuration mode.
Step 2 switch(config)# fctimer R_A_TOV 6000
Configures the R_A_TOV value for all VSANs to be 6000 msec. This type of configuration is not permitted unless all
VSANs are suspended.

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.
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
300
default is 5,000 milliseconds.
2,000 milliseconds. This value is matched with the other end during port initialization.
default is 10,000 milliseconds. This value is matched with the other end during port initialization.
Advanced Features and Concepts