Which is better IGMP v2 or v3?
IGMPv2 improves over IGMPv1 by adding the ability for a host to signal desire to leave a multicast group and IGMPv3 improves over IGMPv2 mainly by adding the ability to listen to multicast originating from a set of source IP addresses only.
What is IGMP v3?
Version 3 of IGMP adds support for “source filtering”, that is, the ability for a system to report interest in receiving packets *only* from specific source addresses, or from *all but* specific source addresses, sent to a particular multicast address.
Is IGMP v3 backwards compatible with IGMPv2?
IGMPv3 supports source-specific join and leave messages and is backward compatible with IGMPv1 and IGMPv2.
Is IGMP a Layer 3?
IGMP is a network layer (Layer 3) protocol used to establish membership in a Multicast group and can register a router to receive specific Multicast traffic.
What is IGMPv2?
IGMPv2 is the revised version of IGMPv1 communication protocol. It has added functionality of leaving the multicast group using group membership.
What is the difference between IGMPv1 and IGMPv2?
IGMPv2 is better than IGMPv1.In IGMPv1 two messages were introduced group membership query(send by router) and membership report(send by host) . Leave message was used to remove this leave latency. One more difference is in IGMPv2 you can change MRT(Maximum Response time) which is default 10 sec in V1.
What is IGMP on router?
The Internet Group Management Protocol (IGMP) manages the membership of hosts and routing devices in multicast groups. IP hosts use IGMP to report their multicast group memberships to any immediately neighboring multicast routing devices.
Should I enable IGMP?
IGMP proxying should be left enabled unless it causes problems. This allows the router to convert Multicast traffic into Unicast traffic, allowing for the network especially wireless devices, to work more efficiently.
Is IGMP multicast?
IGMP is a network layer protocol used to set up multicasting on networks that use the Internet Protocol version 4 (IPv4). Specifically, IGMP allows devices to join a multicasting group.
What is L3 multicast?
L3 multicast is concerned with delivering the multicast stream between vlans eg PIM . Obviously if you have L3 multicast routing you should probably also use L2 multicast. But if you only need to use multicast within a vlan then just use IGMP snooping plus the IGMP snooping querier function ie.