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| Solution # |
K11552379 |
| Title |
IS-IS route is not redistributed into OSPF |
| Core Issue |
Route redistribution is used to propagate routes learned using one protocol into another routing protocol. When Intermediate System-to-Intermediate System (IS-IS) is redistributed into Open Shortest Path First (OSPF), some IS-IS routes may not be redistributed successfully. Specifically, routes advertised using IS-IS on the redistributing router are not redistributed. This behavior is expected. If a directly connected network is also advertised by IS-IS, the route is entered into the local routing table as a connected route and not as an IS-IS route. While redistributing IS-IS into OSPF, these directly connected routes are not injected into OSPF. |
| Resolution |
To redistribute connected routes, marked as C in the routing table, perform these steps:
- Configure an OSPF routing process by issuing the router ospf command.
- Redistribute the connected routes into OSPF by issuing the redistribute connected command.
For more information, refer to Redistributing Connected Networks into OSPF. |
| Problem Type |
Route missing from routing table / incorrect route in routing table
Route not being redistributed |
| IP Routing Protocols |
OSPF
ISIS |
| Routing Services |
Redistribution |
| Direct URL |
http://www.ciscotaccc.com/iprout/showcase?case=K11552379 |
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