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7. If the problem persists, contact Hewlett Packard Enterprise Support.
Incorrect routing information
Symptom
OSPF cannot find routes to other areas.
Analysis
The backbone area must maintain connectivity to all other areas. If a router connects to more than
one area, at least one area must be connected to the backbone. The backbone cannot be configured
as a stub area.
In a stub area, all routers cannot receive external routes, and all interfaces connected to the stub
area must belong to the stub area.
Solution
To resolve the problem:
1. Use the display ospf peer command to verify neighbor information.
2. Use the display ospf interface command to verify OSPF interface information.
3. Use the display ospf lsdb command to verify the LSDB.
4. Use the display current-configuration configuration ospf command to verify area
configuration. If more than two areas are configured, at least one area is connected to the
backbone.
5. In a stub area, all routers attached are configured with the stub command. In an NSSA area, all
routers attached are configured with the nssa command.
6. If a virtual link is configured, use the display ospf vlink command to verify the state of the
virtual link.
7. If the problem persists, contact Hewlett Packard Enterprise Support.
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