Selects the type of IGMP snooping filters that are installed.
| per-port | Installs the per-port IGMP snooping filters. |
| per-vlan | Installs the per-VLAN IGMP snooping filters. |
per-port.
Use the per-vlan option when the number of VLANs configured on the switch is lower than the maximum numbers listed in the following table. This option conserves usage of the hardware Layer 3 multicast forwarding table.
When the number of configured VLANs is larger than the maximum values listed here, select the per-port option. Each VLAN requires additional interface hardware ACL resources. The per-port option conserves usage of the interface hardware ACL resources.
| ExtremeSwitching Switch Series Module Type | Maximum Number of VLANs When per-VLAN Snooping Filters are Installed |
|---|---|
| a Series | 1000 |
| c Series | 2000. |
| e Series | 448. |
| xl Series | 2000. |
The actual maximum value is smaller if other processes require entries in the interface ACL table. To display the IGMP snooping filters configuration, use the show igmp snooping command.
Note
For MLD Snooping, the maximum number of VLANs is half of the numbers provided in this table. The maximum number specified here is individual limit for IGMP snooping filters. If both IGMP and MLD snooping filters are used, the maximum numbers are lower than the ones specified.
The following command configures the switch to install the per-VLAN IGMP snooping filters:
# configure igmp snooping filters per-vlan
This command was first available in ExtremeXOS 12.1.
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 v33.1.1 Licensing Guide document.