Command Line Reference Guide

Open Shortest Path First (OSPFv2 and OSPFv3) | 1011
summary-address
c e s
Set the OSPF ASBR to advertise one external route.
Syntax
summary-address ip-address mask [not-advertise] [tag tag-value]
To disable summary address, use the no summary-address ip-address mask command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER OSPF
Command
History
Usage
Information
If you are using Multi-Process OSPF, you must enter the Process ID to view information regarding a
specific OSPF process. If you do not enter the Process ID, only the first configured process is listed.
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
Table 40-109. Command Example Descriptions: show ip ospf process-id virtual-links
Items Description
“Virtual Link...” This line specifies the OSPF neighbor to which the virtual link was created and the link’s status.
“Run as...” This line states the nature of the virtual link.
“Transit area...” This line identifies the area through which the virtual link was created, the interface used,
and the cost assigned to that link.
“Transmit Delay...” This line displays the transmit delay assigned to the link and the State of the OSPF neighbor.
“Timer intervals...” This line displays the timer values assigned to the virtual link. The timers are Hello is
hello-interval, Dead is dead-interval, Wait is transmit-delay, and Retransmit is
retransmit-interval.
“Hello due...” This line displays the amount of time until the next Hello packet is expected from the neighbor router.
“Adjacency State...” This line displays the adjacency state between neighbors.
ip-address
Specify the IP address in dotted decimal format of the address to be summarized.
mask
Specify the mask in dotted decimal format of the address to be summarized.
not-advertise (OPTIONAL) Enter the keyword not-advertise to suppress that match the network prefix/mask pair.
tag tag-value (OPTIONAL) Enter the keyword tag followed by a value to match on routes redistributed through a route map.
Range: 0 to 4294967295
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
area range Summarizes routes within an area.