SR OS supports the configuration of static and dynamic delay measurement, and provides a configuration parameter to determine precedence. The dynamic delay measurements use the link measurement templates and interface delay test packets to gather results. The static delay is a configured value. Both static delay and dynamic delay can be configured under the same interface. Both are reported to the routing engine based on their own rules. The routing engine must be informed on how to interpret this condition and which metric to advertise. The delay selection, configured using the delay-selection command, provides four options to customize the handling. The configuration options allow for only one to be considered (using the static or dynamic options) or which is to be preferred should both exist (using the static-preferred or dynamic-preferred options). There may be an amount of time between the interface initialization and the reporting of a valid dynamic delay value. This case may require some deployments to configure a static delay value to fill the time gap while waiting for the link measurement first report. In this case, preferring dynamic allows the routing engine to advertise the static value until the dynamic delay report is made.