IGMP is part traffic cop, part Jedi for multicast networks. It is the communications protocol used by network routers to ensure that audio goes to where it is needed, and not to where it isn’t needed. Without IGMP, all the audio data in your system would go to every single device that is connected to your network. Every Blade, every console surface, every talent station and computer would receive tons of data that they don’t need, and port flooding would occur. Port flooding leads to packet loss, which results in audio dropouts, missed or sluggish meters/control, and galactic chaos in general. You’ll find What is IGMP and Why You Need It as well as other helpful tips, videos and product information at our new online Wheatstone Support Center, a repository of knowledge and technical information created by our support team.