C
HAPTER
45
| IP Routing Commands
Open Shortest Path First (OSPFv2)
– 1047 –
â—† If this router already has registered neighbors, the new router ID will
be used when the router is rebooted, or manually restarted by entering
the no router ospf followed by the router ospf command.
â—† If the priority values of the routers bidding to be the designated router
or backup designated router for an area are equal, the router with the
highest ID is elected.
EXAMPLE
Console(config-router)#router-id 10.1.1.1
Console(config-router)#
RELATED COMMANDS
router ospf (1043)
timers spf This command configures the delay after receiving a topology change and
starting the shortest path first (SPF) calculation, and the hold time
between making two consecutive SPF calculations. Use the no form to
restore the default values.
SYNTAX
timers spf spf-delay spf-holdtime
no timers spf
spf-delay - The delay after receiving a topology change notification
and starting the SPF calculation. (Range: 0-2147483647 seconds)
spf-holdtime - Minimum time between two consecutive SPF
calculations. (Range: 0-2147483647 seconds)
COMMAND MODE
Router Configuration
DEFAULT SETTING
SPF delay: 5 seconds
SPF holdtime: 10 seconds
COMMAND USAGE
â—† Setting the SPF holdtime to 0 means that there is no delay between
consecutive calculations.
â—† Using a low value allows the router to switch to a new path faster, but
uses more CPU processing time.
EXAMPLE
Console(config-router)#timers spf 20
Console(config-router)#
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