Disables IGMP snooping.
| forward-mcrouter-only | Specifies that the switch forwards all multicast traffic to the multicast router only. |
| with-proxy | Disables the IGMP snooping proxy. |
| name | Specifies a VLAN. |
IGMP snooping and the with-proxy option are enabled by default, but forward-mcrouter-only option is disabled by default.
If a VLAN is specified, IGMP snooping is disabled only on that VLAN, otherwise IGMP snooping is disabled on all VLANs.
This command applies to both IGMPv2 and IGMPv3.
If the switch is in the forward-mcrouter-only mode, then the command disable igmp snooping forward-mcrouter-only changes the mode so that all multicast traffic is forwarded to any IP router. If not in the forward-mcrouter-mode, the command disable igmp snooping forward-mcrouter-only has no effect.
To change the snooping mode you must disable IP multicast forwarding. Use the command: disable ipmcforwarding
The with-proxy option can be used for troubleshooting purpose. It should be enabled for normal network operation.
Enabling the proxy allows the switch to suppress the duplicate join requests on a group to forward to the connected Layer 3 switch. The proxy also suppresses unnecessary IGMP leave messages so that they are forwarded only when the last member leaves the group.
The following example disables IGMP snooping on the VLAN accounting:
disable igmp snooping accounting
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 Switch Engine 32.3 Feature License Requirements document.