20-4 show ip ospf
process-id
border-routers
Syntax Description:
Purpose:
To display the OSPF routing table entries to ABRs and ASBRs. The output of this command can be filtered, using regular expressions, by one of the following forms:
show ip ospf border-routers
begin
regular-expression
show ip ospf border-routers
exclude
regular-expression
show ip ospf border-routers
include
regular-expression
Initial Cisco IOS Software Release:
10.0
Example: Displaying OSPF Border Router Information
The following is a representative output from the
show ip ospf border-routers
EXEC command.
r6#
show ip ospf border-routers
OSPF Process 1 internal Routing Table
Codes: i - Intra-area route, I - Inter-area route
I 4.4.4.4 [122] via 10.1.1.18, Serial0/1, ASBR, Area 7, SPF 5
i 1.1.1.1 [48] via 10.1.1.18, Serial0/1, ABR, Area 7, SPF 5
Table 20-2 provides an explanation for the highlighted line in the
preceding
output.
Table 20-2.
Significant Output from the
show ip ospf border-routers
Command
|
Field
|
Description
|
|
I
|
Indicates the type of route to the ABR or ASBR. Possible values are I for an inter-area route and i for an intra-area route.
|
|
4.4.4.4
|
Indicates the router ID of the ABR or ASBR.
|
|
[122]
|
Indicates the OSPF cost of the route to the ABR or ASBR.
|
|
via 10.1.1.18
|
Indicates the
next
hop toward the ABR or ASBR.
|
|
Serial0/1
|
Indicates the interface used to reach the next hop.
|
|
ASBR
|
Indicates the border router type (ABR or ASBR).
|
|
Area 7
|
Indicates the area from which the route to the border router was learned.
|
|
SPF 5
|
The number of the SPF calculations that calculated this route.
|
|
