How do I enable IGMP (Internet Group Management Protocol) snooping on the NVT Phybridge FLEX 24-10G (NV-FLX-024-10G) switch?

Multicast allows network devices to subscribe to a multicast group. A multicast group is denoted by an IPv4 address within the range of 224.0.0.0 to 239.255.255.255 or an IPv6 address with the prefix ff00::/8. Once a device has subscribed to a group, it will receive all traffic with a destination IP address that matches the group.
IGMP is the Internet Group Management Protocol. IGMP snooping allows a switch to eavesdrop on the IGMP conversation between hosts and routers. Without IGMP snooping a switch would not be able to determine which multicast groups are needed on which switch interfaces. The absence of IGMP snooping on a switch would create a network where the switch broadcasts all multicast traffic it receives from the router.

IGMP Versions
There are three versions of IGMP, IGMPv1, IGMPv2, and IGMPv3. All three versions are backward compatible with any previous versions. 

For basic configuration commands, refer to the Admin guide.

IGMP Snooping VLAN Configuration

Every VLAN on the FLEX24-10G will also have its own entry in the IGMP Snooping VLAN Table. The IGMP Snooping VLAN Table allows for a per-VLAN IGMP snooping configuration. Although the FLEX24- 10G supports up to 4096 VLANs, only 128 VLANs can be configured with IGMP snooping.

Commands example as below,

FLEX24-10G# configure terminal
FLEX24-10G(config)# interface vlan 1
FLEX24-10G(config-if-vlan)# ip igmp snooping
FLEX24-10G(config-if-vlan)# ip igmp snooping querier election
FLEX24-10G(config-if-vlan)# ip igmp snooping querier address 192.168.0.1
FLEX24-10G(config-if-vlan)# ip igmp snooping compatibility v3
FLEX24-10G(config-if-vlan)# ip igmp snooping priority 0
FLEX24-10G(config-if-vlan)# ip igmp snooping robustness-variable 50
FLEX24-10G(config-if-vlan)# ip igmp snooping query-interval 120
FLEX24-10G(config-if-vlan)# ip igmp snooping query-max-response-time 50
FLEX24-10G(config-if-vlan)# ip igmp snooping last-member-query-interval 20
FLEX24-10G(config-if-vlan)# ip igmp snooping unsolicited-report-interval 2
FLEX24-10G(config-if-vlan)# end

Refer to the Admin Guide for all the advanced settings available in the switch. You’ll find additional resources like the Datasheet, Admin Guide, A&E spec sheet, etc on the product page here.  

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