Configures This command is available on the ExtremeSwitching X440-G2, X450-G2, X460-G2, X465, X590, X620, X670-G2, X690, X695, X870, 5320, 5420, 5520 series switches. ports to receive the traffic from a multicast group, even if no IGMP joins have been received on the port.
| vlanname | Specifies a VLAN name. |
| portlist | Specifies one or more ports or slots and ports. |
| grpipaddress | Specifies the multicast group IP address. |
N/A.
Use this command to forward a particular multicast group to VLAN ports. In effect, this command emulates a host on the port that has joined the multicast group. As long as the port is configured with the static entry, multicast traffic for that multicast group is forwarded to that port.
This command is for IGMPv2 only.
The switch sends proxy IGMP messages in place of those generated by a real host. The proxy messages use the VLAN IP address for source address of the messages. If the VLAN has no IP address assigned, the proxy IGMP message uses 0.0.0.0 as the source IP address.
The multicast group should be in the class-D multicast address space, but should not be in the multicast control subnet range (224.0.0.x/24).
If the ports also have an IGMP filter configured, the filter entries take precedence. IGMP filters are configured using the command:
configure igmp snooping vlan vlanname ports portlist filterpolicy fileThe following example configures a static IGMP entry so that multicast group 225.1.1.1 is forwarded to VLAN "marketing" on port 47:
switch.30 # configure igmp snooping marketing ports 47 add static group 225.1.1.1
The following command displays the group:
* (pacman debug) sw4.31 # show igmp group Group Address Ver Vlan Port Age 225.1.1.1(s) 2 marketing 47 0 Total: 1 switch.32 #
The following example adds a static group to a vlan (loopback port):
switch.32 # configure igmp snooping marketing add static group 225.1.1.1
The following command displays the group:
switch.33 # show igmp group Group Address Ver Vlan Port Age 225.1.1.1(s) 2 marketing Lpbk 0 Total: 1 switch.34 #
This command was first available in ExtremeXOS 10.1.
This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the IGMP snooping feature, see the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.