Administrator Guide

show ip ospf asbr
Display all autonomous system boundary router (ASBR) routers visible to OSPF.
C9000 Series
Syntax
show ip ospf process-id | vrf vrf-name asbr
Parameters
process-id Enter the OSPF Process ID to show a specific process. If no Process ID is entered,
command applies only to the first OSPF process.
vrf vrf-name Enter the keyword vrf and the name of the VRF to view all ASBR routers visible to
the OSPF process that is tied to a specific VRF.
Defaults none
Command Modes
● EXEC
● EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.4(0.0) Added support for VRF on all platforms (Except MXL and STOMP).
9.2(1.0) Introduced on the Z9500.
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 of Multi-Process OSPF.
7.8.1.0 Added the process-id option, in support of Multi-Process OSPF.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series and E-Series.
Usage
Information
To isolate problems with external routes, use this command. In OSPF, external 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, use this command to determine if the path to the originating router is correct. The display
output is not sorted in any order.
NOTE: ASBRs that are not in directly connected areas are also displayed.
You can determine if an ASBR is in a directly connected area (or not) by the flags. For ASBRs in a directly
connected area, E flags are set. In the following example, router 1.1.1.1 is in a directly connected area since
the Flag is E/-/-/. For remote ASBRs, the E flag is clear (-/-/-/).
Example
Dell#show ip ospf 1asbr
RouterID Flags Cost Nexthop Interface Area
3.3.3.3 -/-/-/ 2 10.0.0.2 Te 0/1 1
1.1.1.1 E/-/-/ 0 0.0.0.0 - 0
Dell#
Open Shortest Path First (OSPFv2 and OSPFv3) 1193