Here is how you could configure it to create 3 "sub" collectors and to have them forward {quote: ClassAds} to the main collector.  Each sub collector will have a unique condor_shared_port sock name, enabling the central manager to only need a single listen port(by default, it will use well-known HTCondor port 9618 TCP).   This configuration example leverages the fact that shared_port is enabled by default in HTCondor v8.6.0+, and also leverages the =CollectorNode= configuration template included in v8.6.0+.
 
-In the condor_config file *on your central manager*, include the following:
+In the condor_config file *on your central manager*, include the following.
+
+In v8.8.0+, replace =use Experimental:CollectorNode= with =use feature: ChildCollector=.
 
 {code}
 # Define sub collectors (in this case, we want 3)