The always keyword originates a default route regardless of whether the device has learned a default route. This option is disabled by
default.
The metric value parameter species a metric for the default route. If this option is not used, the value of the default-metric command is
used for the route.
The metric-type type parameter species the external link type associated with the default route advertised into the OSPF routing
domain. The type can be one of the following:
• 1 - Type 1 external route
• 2 - Type 2 external route
If you do not use this option, the default redistribution metric type is used for the route type.
NOTE
If you specify a metric and metric type, the values are used even if you do not use the always option.
To disable default route origination, enter the no form of the command.
Modifying Shortest Path First timers
The Brocade device uses the following timers when calculating the shortest path for OSPFv3 routes:
• SPF delay - When the Brocade device receives a topology change, the software waits before it starts a Shortest Path First (SPF)
calculation. By default, the software waits 5 seconds. You can
congure the SPF delay to a value from 0 through 65535
seconds. If you set the SPF delay to 0 seconds, the software immediately begins the SPF calculation after receiving a topology
change.
• SPF hold time - The device waits a specic amount of time between consecutive SPF calculations. By default, it waits 10
seconds. You can congure the SPF hold time to a value from 0 through 65535 seconds. If you set the SPF hold time to 0
seconds, the software does not wait between consecutive SPF calculations.
You can set the SPF delay and hold time to lower values to cause the device to change to alternate paths more quickly if a route fails.
Note that lower values for these parameters require more CPU processing time.
You can change one or both of the timers.
NOTE
If you want to change only one of the timers, for example, the SPF delay timer, you must specify the new value for this timer as
well as the current value of the SPF hold timer, which you want to retain. The device does not accept only one timer value.
NOTE
If you congure SPF timers between 0-100, they will default to 0 and be displayed incorrectly in the running
conguration.
To change the SPF delay to 10 seconds and the SPF hold to 20 seconds, enter the following command.
device(config-ospf6-router)# timers spf 10 20
Syntax: [no] timers spf delay hold-time
For the delay and hold-time parameters, specify a value from 0 through 65535 seconds.
To set the timers back to their default values, enter the no version of this command.
Conguring OSPFv3
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