Users Guide

Supported
Releases
10.2.0E or later
show ip ospf asbr
Displays all the ASBR visible to OSPF.
Syntax
show ip ospf [process-id] [vrf vrf-name] asbr
Parameters
● process-id—(Optional) Displays information based on the process ID.
● vrf vrf-name — (Optional) Displays the ASBR router visible to the OSPF process configured in
the specified VRF.
Default Not configured
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 by the flags. For
ASBRs in a directly connected area, E flags 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] [vrf vrf-name] database
Parameters
● process-id — (Optional) View LSA information for a specific OSPF process ID. If you do not enter
a process ID, the command applies to all the configured OSPF processes.
● vrf vrf-name — (Optional) Enter the keyword vrf followed by the name of the VRF to display
LSA information for the OSPF process corresponding to that VRF.
Default Not configured
Command Mode EXEC
Usage
Information
● Link ID — Identifies the router ID.
● ADV Router — Identifies the advertising router’s ID.
● Age — Displays the LS age.
● Seq# — Identifies the LS sequence number. This identifies 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.
Example
OS10# show ip ospf 10 database
OSPF Router with ID (111.2.1.1) (Process ID 10)
Router (Area 0.0.0.0)
Link ID ADV Router Age Seq# Checksum Link
count
111.2.1.1 111.2.1.1 1281 0x8000000d 0x9bf2 3
111.111.111.1 111.111.111.1 1430 0x8000021a 0x515a 1
111.111.111.2 111.111.111.2 1430 0x8000021a 0x5552 1
Layer 3 951