Service Manual

Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
The area range command summarizes routes for the different areas.
With the not-advertise parameter configured, you can use this command to filter out some external routes.
For example, if you want to redistribute static routes to OSPF, but you don't want OSPF to advertise routes with
prefix 1.1.0.0, you can configure the summary-address 1.1.0.0 255.255.0.0 not-advertise to filter out all the routes
fall in range 1.1.0.0/16.
Related Commands area range — summarizes routes within an area.
timers spf
Set the time interval between when the switch receives a topology change and starts a shortest path first (SPF) calculation.
Syntax
timers spf delay holdtime msec
To return to the default, use the no timers spf command.
Parameters
delay Enter a number as the delay. The range is from 0 to 2147483647. The default is 5
seconds.
holdtime Enter a number as the hold time. The range is from 0 to 2147483647. The default is 10
seconds.
msec Enter the keyword msec to specify the time interval value in milli seconds.
NOTE: If you do not specify the msec option, the timer values are considered
as seconds.
Defaults
• delay = 5 seconds
• holdtime = 10 seconds
Command Modes ROUTER OSPF
Command History
Version Description
9.11(0.0) Introduced the msec keyword.
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information Setting the delay and holdtime parameters to a low number enables the switch to an alternate path quickly but
requires more CPU usage.
Example for IPv4
and IPv6
Dell#
Dell#conf
Dell(conf)#router ospf 1
Dell(conf-router_ospf-1)#timer spf 2 5 msec
Dell(conf-router_ospf-1)#
Open Shortest Path First (OSPFv2 and OSPFv3) 907