KnowledgeBase/CII.md

@@ -1290,11 +1290,27 @@ import elt.pymal
 import ccs.defaults
 
 uri = "dds.ps://TOPIC"
-prp = ccs.defaults.GetDefaultMalPropertiesForCcs (uri)
+prp = ccs.defaults.GetDefaultMalPropertiesForCcs (uri) # (uri, app_name, cnd_ip)
 mfa = elt.pymal.LoadMalForUri (uri, prp)
 sub = mfa.getSubscriber (uri, ..
 ```
 
+The standard DDS Qos are not appropriate for all environments.
+Examples for useful tweaks of the properties:
+
+i) to use Localhost_Only:
+```plaintext
+prp["dds.qos.profile.name.participant"] = "Localhost_Only"
+```
+ii) to use a certain network interface:
+```plaintext
+prp["dds.qos.participant.interfaceWhiteList"] = "lo"
+```
+iii) to use a custom profile file:
+```plaintext
+prp["dds.qos.profile.library"] = "/tmp/dds_profile.xml"
+```
+
 Find more documentation at https://gitlab.eso.org/ccs/ccs-defaults
 and see an example application at https://gitlab.eso.org/cii/mal/icd-demo/-/blob/master/app/cpp/ps/subscriber/src/SubscriberDemo.cpp