opendaylight/md-sal/sal-clustering-commons/src/test/resources/reference.conf

   1   bounded-mailbox {
   2     mailbox-type = "org.opendaylight.controller.cluster.common.actor.MeteredBoundedMailbox"
   3     mailbox-capacity = 1000
   4     mailbox-push-timeout-time = 10ms
   5   }