What does IP IGMP join group do?
“ip igmp join-group” causes the router to send an IGMP membership report on the interface where it is configured. The mcast packets will therefore be received and process switched by the router. This command is usually used for test purposes.
How do I join the IGMP group?
When an IGMP client connected to a switch port needs to receive multicast traffic from a specific group, it joins the group by sending an IGMP report (join request) to the network. (The multicast group specified in the join request is determined by the requesting application running on the IGMP client.)
What does enable IGMP mean?
When enabled, IGMP Snooping monitors IGMP communications among devices and optimizes wireless multicast traffic. This definition does not really explain much. However, a simpler way to put it is that IGMP Snooping can be enabled so that your router acts as a mailman or gate for the multicast traffic.
What is IGMP snooping in router?
IGMP snooping is a method that network switches use to identify multicast groups, which are groups of computers or devices that all receive the same network traffic. It enables switches to forward packets to the correct devices in their network.
What port does IGMP use?
IGMP reports are forwarded to the uplink port (the router ports). Multicast data traffic is forwarded to uplink ports (the router ports).
Why is IGMP needed?
IGMP is required for this product because the total amount of network traffic across the network needs to be reduced to avoid impacting the other connected devices. Without IGMP, the video extender would send the video signal to each of the devices on your network.
Why do we need IGMP?
Should I enable IGMP proxy?
I suggest you keep the IGMP Proxy enabled to not generate additional network traffic, which in turn leads to better productivity and efficiency of your wireless devices. Enabling IGMP Proxying also resolves mirroring issues that are commonly observed in networks.
How do multicast groups work?
Using multicast, a source can send a single copy of data to a single multicast address, which is then distributed to an entire group of recipients. A multicast group identifies a set of recipients that are interested in a particular data stream, and is represented by an IP address from a well-defined range.