If you have: ICX 8200 switches in a stack, or any other Ruckus ICX switches running 10.x also in a stack, you may find that channel changes with IPTV systems take very long (around 10 seconds).

This is due to a known issue with IGMP snooping (bug ID # FI-287612). The solution is to upgrade the software to 10.0.10c_cd2 or later. If an upgrade is not possible, changing from Stack to Standalone switches also resolves it.