This command requires the Enterprise Services license. Use the show ip ospf virtual-links command to verify the dead interval. A shorter dead interval may lead to virtual link instability by incorrectly declaring a slow neighbor as down. You can configure a shorter dead interval ( seconds) to detect a down neighbor faster and improve convergence. This value must be the same for all networking devices on the virtual link. Use the dead interval command in virtual link configuration mode to configure the dead interval advertised in OSPF hello packets. Virtual link configuration Supported User Roles The default value for seconds is our times the interval set by the hello-interval command. The value must be the same for all nodes on the virtual link. Interval (in seconds) during which the router must receive at least one hello packet from a neighbor or that neighbor is removed from the peer list and does not participate in routing. To restore the default, use the no form of this command. To set the interval during which at least one hello packet must be received from a neighbor on an Open Shortest Path First (OSPF) virtual link before the router declares that neighbor as down, use the dead interval command. This chapter describes the Cisco NX-OS unicast routing commands that begin with the letter D.
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