This section discusses the issues related to DDR. When OSPF is configured over a DDR link, be sure to suppress OSPF Hellos because OSPF sends Hellos over point-to-point links every 10 seconds.
The most common issues related to OSPF over DDR links are as follows:
• Problem: OSPF Hellos are bringing up the link
• Problem: OSPF Hellos are not getting across the link*
• Problem: Demand circuit keeps bringing up the link NOTE
*The problem of OSPF Hellos not getting across the link was addressed earlier in the section Troubleshooting OSPF Neighbor Relationships." Refer to this section for the solution to this problem.
Was this article helpful?