By default, short discovery is not enabled. To enable short discovery, set the autoReprobe_short parameter in the discovery.conf file to TRUE:
When autoReprobe_short is TRUE and EnableIPSecDiscovery in the tpmgr-param.conf file is TRUE, short discovery accepts both IsDownOrFlapping interface attribute changes and OperationallyDown card events as input.
When autoReprobe_short is TRUE and EnableIPSecDiscovery is FALSE, short discovery accepts only OperationallyDown card events as input.
To change the short discovery interval or the number of short discovery threads, modify the reprobePeriod_short parameter or the numberShortProbeThreads parameter in the discovery.conf file.