You can use the following procedure to reduce unsolicited DA advertisements and active discovery by increasing the DA heartbeat period and the active discovery interval.
For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.3.
# svcadm disable network/slp
net.slp.DAHeartbeat=value
A 32-bit integer that sets the number of seconds for the passive DA advertisement heartbeat
Default Value=10800 seconds (3 hours)
Range of Values=2000–259200000 seconds
For example, you can set the DA heartbeat to approximately 18 hours on a host that is executing a DA:
net.slp.DAHeartbeat=65535
net.slp.DAActiveDiscoveryInterval value
A 32–bit integer that sets the number of seconds for DA active discovery queries
Default Value=900 seconds (15 minutes)
Range of Values=300–10800 seconds
For example, you can set the DA active discovery interval to 18 hours on a host that is executing a UA and an SA:
net.slp.DAActiveDiscoveryInterval=65535
# svcadm enable network/slp