Administrator Guide

Usage Information To isolate problems with inter-area and external routes, use this command. In OSPF inter-area and external routes
are calculated by adding LSA cost to the cost of reaching the router. If an inter-area or external route is not of
correct cost, the display can determine if the path to the originating router is correct or not.
Example
Dell# show ip ospf 1 topology
Router ID Flags Cost Nexthop Interface Area
3.3.3.3 E/B/-/ 1 20.0.0.3 Gi 13/1 0
1.1.1.1 E/-/-/ 1 10.0.0.1 Gi 7/1 1
Dell#
summary-address
To advertise one external route, set the OSPF ASBR.
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
ip-address Specify the IP address in dotted decimal format of the address to summarize.
mask Specify the mask in dotted decimal format of the address to summarize.
not-advertise (OPTIONAL) Enter the keywords not-advertise to suppress that match the network
prex/mask pair.
tag tag-value (OPTIONAL) Enter the keyword tag then a value to match on routes redistributed
through a route map. The range is from 0 to 4294967295.
Defaults Not congured.
Command Modes ROUTER OSPF
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Added support for Multi-Process OSPF.
Open Shortest Path First (OSPFv2 and OSPFv3) 1135