Novell ZENworks for Desktops 4.0.1 - ZfD4.0.1
Novell ZENworks for Desktops 3.2
Novell ZENworks Imaging
Novell ZENworks 11 Configuration Management Imaging
Novell ZENworks 11 Configuration Management Support Pack 1 - ZCM 11 SP1 Imaging
Novell ZENworks 10 Configuration Management Imaging
Novell ZENworks 7.3 Linux Management - ZLM7.3
The connection limit is for any connection to imgserv/pbserv which includes queries for work, unicast images, reporting results of attempted work, etc. It applies to starting multicast sessions, but not the multicast sessions themselves.
The same limit exists in all versions of imaging.
Novell, however, has successfully scaled past 50 simultaneous unicast sessions in their lab using a Windows and NetWare imaging backend. The problem one runs into when running this is overloading the tftp server. As more clients start downloading the linux files, the download process becomes longer.