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Protocol Independent Multicast - Sparse Mode (PIM-SM or PIM) enables RouterOS to support multicast streaming over the network area. PIM stands for Platform Independent Multicast, meaning it's not tied to any particular unicast routing. SM stands for Sparse-Mode, which means that specific control messages ensure that data is delivered only to network segments where there are receivers that want it. In addition to the routing protocols that manage data transmission between network segments, routers need a way to discover local receivers on their directly connected network segment. For IPv4, this is achieved through the Internet Group Management Protocol (IGMP), and Multicast Listener Discovery (MLD) for IPv6.
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RouterOS v7 has PIM-SM configuration available in the main system package. Older RouterOS versions need an additional multicast package installed in order to use PIM-SM. See more details about Packages. |
The feature is not supported on SMIPS devices (hAP lite, hAP lite TC and hAP mini). |
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