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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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Why External Routes Imported by OSPF on CE Series Switches Cannot Be Viewed in the Routing Table?

Why External Routes Imported by OSPF on CE Series Switches Cannot Be Viewed in the Routing Table?

This problem is caused by routing loop detection. By default, routing loop detection is enabled on CE switches. When OSPF VPN multi-instance is deployed on a Multi-VPN-Instance CE (MCE) device, and DN Bit is set in Type 3, Type 5, or Type 7 LSAs, corresponding routes cannot be calculated and viewed in the routing table because routing loop detection will be performed during OSPF route calculation. To address this problem, run the vpn-instance-capability simple command on the MCE to disable routing loop detection in the OSPF instance.

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Updated: 2020-01-07

Document ID: EDOC1000060766

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