20-4 show ip ospf process-id border-routers

< Free Open Study >

Syntax Description:

process-id ” The OSPF process ID. Range of values is 1 to 4,294,967,295.

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.

< Free Open Study >