Reference Guide

670 | Open Shortest Path First (OSPFv2)
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To ensure connectivity in your OSPFv2 network, never configure the backbone area as a stub area.
Use these commands in the following sequence, starting in EXEC Privilege mode to configure a stub area.
Use the
show ip ospf database process-id database-summary command syntax (Figure 413) in the EXEC
Privilege mode To view which LSAs are transmitted.
Figure 35-12. Command Example: show ip ospf process-id database database-summary
To view information on areas, use the show ip ospf process-id command in the EXEC Privilege mode.
Step Command Syntax Command Mode Usage
1
show ip ospf process-id [vrf
vrf name] database
database-summary
EXEC Privilege Review all areas after they were configured to
determine which areas are NOT receiving type 5
LSAs.
vrf name: Show only the OSPF information tied to the
VRF process.
2
configure
EXEC Privilege Enter the CONFIGURATION mode.
3
router ospf process-id [vrf {vrf
name}]
CONFIGURATION Enter the ROUTER OSPF mode.
Process ID is the ID assigned when configuring
OSPFv2 globally (page 58).
vrf name: Enter the VRF key word and instance name to
tie the OSPF instance to the VRF. All network commands
under this OSPF instance are subsequently tied to the
VRF instance.
4
area area-id stub
[no-summary]
CONFIG-ROUTER-O
SPF-id
Configure the area as a stub area. Use the
no-summary keywords to prevent transmission in
to the area of summary ASBR LSAs.
Area ID is the number or IP address assigned when
creating the Area (page 60).
Dell#show ip ospf 34 database database-summary
OSPF Router with ID (10.1.2.100) (Process ID 34)
Area ID Router Network S-Net S-ASBR Type-7 Subtotal
2.2.2.2 1 0 0 0 0 1
3.3.3.3 1 0 0 0 0 1
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