FAQ | Does Q-SYS make use Any-source (IGMPv2) or Source-Specific (IGMPv3) Multicast traffic?
Learn how Q-SYS utilizes multicast traffic.
Answer
Q-SYS uses Any-source multicast (also known as IGMPv2) for all its multicast needs, which include Q-SYS discovery protocol (QDP) and PTPv1/PTPv2.
Q-SYS does not support Source-specific multicast (also known as IGMPv3)
Please follow this link to the Q-SYS help file for more detail
https://help.qsys.com/#Networking/Multicast_Traffic.htm?Highlight=igmp