IGMP Aruba 2920

Some hints about IGMP basics:

show ip igmp [vlan <vid>]

show ip igmp config

show ip igmp vlan <vid> config

show ip igmp statistics

show ip igmp statistics

show ip igmp groups

show ip igmp vlan <vid> group <ip-addr>

Enable

HP Switch(vlan-1)# vlan 1 ip igmp

– or –

HP Switch(vlan-1)# ip igmp

Disable

no ip igmp

no vlan 1 ip igmp

Example:





Suppose you want to configure IGMP as follows for VLAN 1 on the 100/1000T ports on a module in slot 1:




Ports 1-2
auto
Filter multicast traffic. Forward IGMP traffic to hosts on these ports that belong to the multicast group for which the traffic is intended. (Also forward any multicast traffic through any of these ports that is connected to a multicast router.)
Ports 3-4
forward
Forward all multicast traffic through this port.
Ports 5-6
blocked
Drop all multicast traffic received from devices on these ports.









For a description of the default behavior of data-driven switches, see Automatic fast-leave IGMP.

Depending on the privilege level, you could use one of the following commands to configure IGMP on VLAN 1 with the above settings:






HP Switch(config)# vlan 1 ip igmp auto 1,2 forward 3,4
blocked 5,6



HP Switch(vlan-1)# ip igmp auto 1,2 forward 3,4
blocked 5,6

Configuring static multicast groups

Use this command to configure a group on the switch so that multicast traffic for that group can be forwarded with a receiver host. Traffic will be flooded for this group.

Syntax:

[no] ip igmp static-group <group-address>

global:

igmp lookup-mode ip

on your NVX VLAN:

ip address dhcp-bootp

ip igmp