Hi, I would like to get our hackspace more multicast ready. Especially to do some multicast routing between our hackspace and our Freifunk wireless mesh network, which thanks to batman-adv and the Linux bridge is now multicast aware. We do have several donated, older switches that others outsourced. But I don't trust them to do IGMP/MLD snooping correctly. Therefore I'm looking for something that does the multicast forwarding in hardware but uses the IGMP/MLD snooping from the Linux bridge in kernelspace and runs on OpenWrt. So I guess I'm looking for something DSA + switchdev capable, but I guess not all of them support using IGMP/MLD snooping in kernelspace? I see some drivers which use DSA's port_mdb_add (b53, bcm_sf2, lan9303, microchip ksz, mt7530, mv88e6xxx, ocelot felix, qca8k-8xxx, sja1105) and/or switchdev's switchdev_obj_port_mdb (same as for DSA plus ksz9477, freescale dpaa2, marvell prestera, mellanox mlx5/mlxsw, lan966x, sparx5, ti am65-cpsw/icssg). Does anyone know of specific devices/products which should work for us and might have some recommendations? Regards, Linus PS: Minimum spec would be 8 ports, managed, 1Gbit, ideally with at least 4 PoE ports. (The hackspace in total also has 46x RJ45 network sockets distributed over three rooms. But I don't think we need full multicast capabilities on all of them to start with. especially as that would probably considerably bump the price.)
