Reference Guide

Supports only single TOS (TOS0) routes
It is an Autonomous System Boundary Router
It is Flooding according to RFC 2328
Convergence Level 0
Min LSA origination 0 msec, Min LSA arrival 1000 msec
Min LSA hold time 5000 msec, Max LSA wait time 5000 msec
Number of area in this router is 1, normal 1 stub 0 nssa 0
Area (0.0.0.0)
Number of interface in this area is 3
SPF algorithm executed 38 times
Area ranges are
Supported Releases 10.2.0E or later
show ip ospf asbr
Displays all the ASBR visible to OSPF.
Syntax
show ip ospf [process-id] asbr
Parameters process-id—(Optional) Displays information based on the process ID.
Default Not congured
Command Mode EXEC
Usage Information You can isolate problems with external routes. External OSPF routes are calculated by adding the LSA cost to the
cost of reaching the ASBR router. If an external route does not have the correct cost, this command determines if
the path to the originating router is correct. ASBRs that are not in directly connected areas display. You can
determine if an ASBR is in a directly connected area or not by the ags. For ASBRs in a directly connected area, E
ags are set.
Example
OS10# show ip ospf 10 asbr
RouterID Flags Cost Nexthop Interface Area
112.2.1.1 E/-/-/ 1 110.1.1.2 vlan3050 0.0.0.0
111.2.1.1 E/-/-/ 0 0.0.0.0 - -
Supported Releases 10.2.0E or later
show ip ospf database
Displays all LSA information. You must enable OSPF to generate output.
Syntax
show ip ospf [process-id] database
Parameters process-id — (Optional) View LSA information for a specic OSPF process ID. If you do not enter a process ID,
the command applies only to the rst OSPF process.
Default Not congured
Command Mode EXEC
Usage Information
• Link ID — Identies the router ID.
• ADV Router — Identies the advertising router’s ID.
• Age — Displays the link state age.
• Seq# — Identies the link state sequence number (identies old or duplicate LSAs).
• Checksum — Displays the Fletcher checksum of an LSA’s complete contents.
• Link count — Displays the number of interfaces for that router.
310 Layer 3