Reference Guide

1136 | Open Shortest Path First (OSPFv2)
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Usage
Information
The command area range summarizes routes for the different areas.
With "not-advertise" parameter configured, this command can be used to filter out
some external routes. For example, you want to redistribute static routes to OSPF, but
you don't want OSPF to advertise routes with prefix 1.1.0.0. Then you can configure
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
timers spf
c e s
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
To return to the default, enter no timers spf.
Parameters
Defaults
delay = 5 seconds; holdtime = 10 seconds
Command Modes
ROUTER OSPF
Command
History
Usage
Information
Setting the delay and holdtime parameters to a low number enables the switch to switch
to an alternate path quickly but requires more CPU usage.
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
area range Summarizes routes within an area.
delay
Enter a number as the delay.
Range: 0 to 4294967295.
Default: 5 seconds
holdtime
Enter a number as the hold time.
Range: 0 to 4294967295.
Default: 10 seconds.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 7.8.1.0 Introduced support of Multi-Process OSPF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series