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Cisco Bug: CSCvu81899 - OSPF router becomes ABR without Area0 connectivity

Last Modified

Jul 21, 2020

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

8.4(3.40)

Description (partial)

Symptom:
OSPF router in non-default VRFs generates type-3 LSA because it becomes ABR without meeting its criteria. 

Criteria to be an ABR:
1. 2 or more areas and Area 0 connectivity is UP 
2. Has redist of BGP L3VPN
3. VRF Lite configuration

Conditions:
When BGP L3VPN configuration is present but BGP is not redistributed into OSPF.
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