Multicast - Any Source Multicast (ASM)
Any Source Multicast (ASM) is just another name for PIM sparse mode and PIM dense mode multicast routing. In such Multicast scenarios, receivers don't care what source they receive multicast traffic from. All sources are accepted.
This is in contrast to Source Specific Multicast (SSM).
Links
https://networklessons.com/multicast/multicast-pim-dense-mode https://networklessons.com/multicast/multicast-pim-sparse-mode